As with all moralistic axioms having mere limited truths implied, the maxim: "You only go around once, so you'd better do it now while you can" admittedly has some validity, but also some potential heresy implied.
In the Old Testament, Solomon put it this way:
Ecclesiastes 9:10 Whatever your hand finds to do, do it with your might; for there is no work or thought or knowledge or wisdom in Sheol, to which you are going.
However, the same Divinely-inspired polygamous author, in the very same book, also wrote this:
Ecclesiastes 7:16 Be not righteous overmuch, and do not make yourself overwise; why should you destroy yourself?
Ecclesiastes 7:17 Be not wicked overmuch, neither be a fool; why should you die before your time?
Ecclesiastes 7:18 It is good that you should take hold of this, and from that withhold not your hand; for he who fears God shall come forth from them all.
Ecclesiastes 8:12 Though a sinner does evil a hundred times and prolongs his life, yet I know that it will be well with those who fear God, because they fear before him
Ecclesiastes 12:12 My son, beware of anything beyond these. Of making many books there is no end, and much study is a weariness of the flesh.
Ecclesiastes 12:13 The end of the matter; all has been heard. Fear God, and keep his commandments; for this is the whole duty of man.
Ecclesiastes 12:14 For God will bring every deed into judgment, with every secret thing, whether good or evil.
Many people think about the possibility of "an afterlife," and the concept of "eternity" related to it, with two things in mind:
First, such a bizarre phenomenon is comprehended, perceived, and defined only in terms of the conventional repetitious and rather predictable cycle of life and nature on this planet and through the celestial universe we humans are familiar with and used to, and
Second, an "afterlife" of "eternity" would seemingly be almost-incredibly boring.
"Boring" indeed with a prospect of perpetually bowing down to God in kumbaya togetherness while placidly strumming harps and guitars up there in the clouds, or being perpetually tortured with black flames in the Outer-Darkness Lake of Fire alone in solitary confinement..."to the ages of the ages."
Sounds like a "black hole" (which is actually no hole at all, but a clump of mass so dense that no light escapes from it).
Speaking of such things, there are some gross misconceptions about time and space being warped and twisted with imaginary "wormholes" supposedly preventing while allowing all sorts of weird things as one approaches the speed of light.
It behooves yours truly (among others) to set the actual record straight.
First of all, wormholes, as with termites, can be problematic. Call Orkin.
Next, there are several untruths about near, at, and beyond light-speed travel and associated phenomena:
(a) A phyical object can be accelerated up to, at, and beyond light speed (approx. 186,000 miles/second) without its so-called "relativistic" mass "becoming infinite."
(b) A clock ticking on a spaceship traveling up to, at, and beyond light speed will tick at exactly the same rate as a clock ticking on rotating-and-revolving planet Earth...without "relativistically" speeding up nor slowing down.
(c) If a spaceship attains light speed, and/or beyond light speed - let's say traveling away from Earth - logic demands that light from the Earth could never overtake the spaceship, and thus the Earth would no longer be visible behind the speeding spaceship by observers on the spaceship. Similarly, light traveling back from the speeding spaceship would never get back from the spaceship to Earth, and the speeding spaceship could no longer be viewed by observers on planet Earth.
(d) The shortest distance, even out in space, from one point to another, is NOT a "relativistic" curve but instead a straight line (although one must keep in mind that practically everything and all objects in space are in some kind(s) of constant motion - orbital or otherwise.
(e) Backward or forward "time travel" is not only physically impossible "relativistically," but not Scripturally plausible. However, if one could speed up past light speed, and thus past light of transpired events emanating from Earth, set up a powerful-enough telescope on some planet or asteroid before that Earth light gets to that planet or asteriod, one theoretically could see the incoming light of all sorts of historical events of the past which have previously happened on Earth.
(f) Einstein was correct in his assessment that matter and energy are interchangeable according to his famous mathematical equation. Two proofs of that are measurements of the slight loss of mass in a fission or fusion nuclear reaction resulting in potential tremendous and spectacular amounts of explosive energy, and that intense gravitation fields (as from the Sun) can bend the path of distant photons of stars around the object associated with that intense gravitation field.
The big bad boogey-entities on Star Trek (and other "science"-fiction flicks) which the crew of the Hollywood-concocted "Enterprise" either conquer by the end of the show, or at least have a peaceful-coexistence standoff with the quasi-supernatural being or beings at the end of the mythological movies, still involves measurable perceptions, manipulations, and resolutions -- no matter how shrewd, massive, intelligent, or whatever such fanciful imaginary special-effects illusions are concocted as being endowed with and displaying.
To "keep a straight head," the reader and the author must always remember that the Creator is FAR greater than anything and anyone He has created...and is - in EVERY possible sense of the word - absolutely and completely non-destructible.
But, let's get back to The Everlasting Continuum of Afterlife Eternity.
There is not merely "a dimension beyond that which is known to man" (and thus no fairy-tale quirks of altered physical reality rife and reeking in Rod Serling's Twilight Zone episodes, those of The Outer Limits science fiction, and much more). Nor are we talking "Back To The Future" requiring an OverThruster in a Delorean car going 88 mph powered by a lightning bolt or equivalent.
What we humans are used to is a physical universe which is detected, perceived, analyzed, and utilized having: measurements....of starting and stopping, of beginning and ending -- whether that measurement of finite dimensions involves time or space. Height, width, length, in inches or centimeters or feet or yards or meters...along with duration of time partitioned into seconds, minutes, days, weeks, months, years, decades, centuries.....all involve definite starting-and-stopping measurements.
Although we have been given the words of "eternity" and "everlasting" and "never-ending" and "infinite," such words ultimately imply the existenc of things supernatural...and probably boring.
Such fantastic concepts are mind-boggling, and - if we persist in going overboard trying to figure them out and contemplate the immense totality of them - we eventually and invaribly become catatonic in frozen-stupor paralysis.
And we wonder if the Creator God, who reportedly made the Earth "out of nothing," can create a whole different environment without any type of detectable and perceivable measurements (which are supposedly characteristic of "eternity" in an "afterlife").
We already do certainly observe His seeming "extravagant" nature in what He has already created. 99.9999999% of Planet Earth has never been, is not now being, nor will ever be explored by human beings. Similarly, 99.9999999% of the contents of the entire celestial universe has never been, is not now being, nor will ever be explored by human beings. "Why? What a WASTE!" - we might be inclined to conclude.
I guess that the best we measurement-minded human creatures can do in terms of trying to appreciate the ramifications of eternity, is to hope that:
(1) there will be enough variety and desire to explore regarding all types and kinds of subject areas to keep us interested, and
(2) we will so intensely like doing what we will be doing that we will assuredly never get bored.
ARE there things which we would like to do, if we were talented enough? ARE there things we would like to do do if we had enough time and money to do them? ARE there things we would like to NOT do which we deem routine-and-mundate monotony necessary to do as a means to an end of finally enabling us to then do what we really would like to do instead?
For the righteous-minded, such variety and pleasant circumstances relating to that go WAY beyond mere 24/7 harp-and-guitar strumming:
Revelation 7:15 Therefore they are before the throne of God, and they serve Him day and night in His temple. And He sitting on the throne will dwell among them.
That "serving" will take MANY forms.
And a few of the revealed Natural Resources of Heaven in the Afterlife of Eternity are portrayed in the New Testament:
John 14:2 In My Father's house are many mansions; if it were not so, I would have told you; for I go to prepare a place for you.
Revelation 20:12 And I saw the dead, the small and the great, standing before God. And books were opened. And another Book was opened, which is the Book of Life. And the dead were judged out of the things written in the books, according to their works.
13 And the sea gave up the dead in it. And death and Hades gave up the dead in them. And they were each judged according to their works.
14 And death and Hades were thrown into the Lake of Fire. This is the second death.
15 And if anyone was not found having been written in the Book of Life, he was thrown into the Lake of Fire.
Revelation 21:1 And I saw a new heaven and a new earth, for the first heaven and the first earth passed away, and the sea no longer is.
2 And I, John, saw the holy city, New Jerusalem, coming down out of Heaven from God, having been prepared as a bride, having been adorned for her Husband.
3 And I heard a great voice out of Heaven, saying, Behold, the tabernacle of God with men! And He will tabernacle with them, and they will be His people, and God Himself will be with them as their God.
4 And God will wipe away every tear from their eyes. And death shall be no longer, nor mourning, nor outcry, nor pain will be any longer; for the first things passed away.
5 And the One sitting on the throne said, Hey, I make all things new. And He says to me, Write, because these words are faithful and true.
6 And He said to me, It is done! I am the Alpha and the Omega, the Beginning and the Ending. To the one thirsting, I will freely give of the fountain of the water of life.
7 The one overcoming will inherit all things, and I will be God to him, and he will be the son to Me.
8 But for the cowardly and disbelieving, the polluted, and murderers, and fornicators, and sorcerers, and idolaters, and all the lying ones, their part will be in the Lake burning with fire and brimstone, which is the second death.
9 And one of the seven angels came to me, he having the seven bowls being filled with the seven last plagues, and spoke with me, saying, Come, I will show you the bride, the wife of the Lamb.
10 And he carried me in spirit on to a great and high mountain, and showed me the great city, holy Jerusalem, coming down out of Heaven from God,
11 having the glory of God. And its light was like a very precious stone, as a jasper stone, being clear as crystal,
12 and having a great and high wall, having twelve gates, and twelve angels at the gates and names having been inscribed, which are of the twelve tribes of the sons of Israel.
13 From the east, three gates; from the north, three gates; from the south, three gates; and from the west, three gates.
14 And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb.
15 And he speaking with me had a golden reed, that he may measure the city, and its gates, and its wall.
16 And the city lies four cornered, even its length as much as the width also. And he measured the city with the reed at twelve thousand stadia; its length and width and height are equal.
17 And he measured its wall, a hundred and forty four cubits, a measure of a man, which is of an angel.
18 And the structure of its wall was jasper; and the city was pure gold, like pure glass.
19 And the foundation of the wall of the city having been adorned with every precious stone: The first foundation, jasper; the second, sapphire; the third, chalcedony; the fourth, emerald;
20 the fifth, sardonyx; the sixth, sardius; the seventh, chrysolite; the eighth, beryl; the ninth, topaz; the tenth, chrysoprasus; the eleventh, hyacinth; the twelfth, amethyst.
21 And the twelve gates were twelve pearls; respectively each one of the gates was of one pearl. And the street of the city was pure gold, as transparent glass.
22 And I saw no temple in it, for the Lord God Almighty is its temple, even the Lamb.
23 And the city had no need of the sun, nor of the moon, that they might shine in it, for the glory of God illuminated it, even its lamp is the Lamb.
24 And the nations of the ones saved will walk in its light; and the kings of the earth bring their glory and honor into it.
25 And its gates may not at all be shut by day, for no night will be there.
26 And they will bring the glory and the honor of the nations into it.
27 And all profaning may not at all enter into it, or any making an abomination or a lie; but only the ones having been written in the Book of Life of the Lamb.
Revelation 22:1 And he showed me a pure river of water of life, bright as crystal, coming forth out of the throne of God and of the Lamb.
2 In the midst of its street and of the river, from here and from there, was a tree of life producing twelve fruits: according to one month each yielding its fruit. And the leaves of the tree were for healing of the nations.
3 And every curse will no longer be. And the throne of God and the Lamb will be in it; and His slaves will serve Him.
4 And they will see His face; and His name will be on their foreheads.
5 And night will not be there; and they have no need of a lamp or a light of the sun, because the Lord God will shed light on them. And they shall reign forever.
Good enough, for starters.
In stark contrast, for the wicked-minded and damned in Hell, about the only variety they will will be left with is how many different ways they can weep, gnash their teeth, and curse and revile and blaspheme both God and His religious right as they are tortured with the black flames in Outer Darkness in solitary confinement.
God has, does, and will give everyone exactly what they really want...deep-down.
[The Holy] Father knows best.