"Low-level heat death" as an end game for the universe is rhetorical babble.
When matter breaks down finer and finer, life forms will become smaller and smaller. The total amount of information in the world is only growing. Death is always and only a way to more life.
The Living see life. The Dead see death. Let the dead bury their own dead and let the living bury their own living.
For if a seed dies and goes in the ground, it will never grow. Only a seed the selfishly insists on itself, its own needs, its own requirements, survives. Grows, thrives, and flourishes, and feeds the nations. A self-serving self-loving seed that never died.
And yet even death is simply a mode of life, a hibernation, a means unto more life.
All Roads Lead Home.
What but the smallest quark contains a squintillian universes within it, as big and as important as ours?
Life unto life, flame unto flame. All dust lives and contains all the gods and all people in miniature. The serpant who licks dust and eats death is the uroborus, who eats the fruit of life and lives forever.
We cannot see the life forms that live in the sun. The people who live in the sun. Nor they us. We have not yet made contact.
In all its glory, the earth is its own sun, to a certain wavelength of people. They see us as the greatest star. Pluto himself is a radiant supernova.
In this life we see but part and fancy it the whole.
But everything is everything, this is also that.
Your conception into existence was the spawning of a new kosmos, a new universe, a million gods and God who all together and individually are You.
You are a gift to all other universes, and may trouble them or bless them, but you will enrich all of them in turn, and they you.
Life is a Game everybody wins in the end, and keep on winning unto greater and greater games.
Your Self is a Name none may say but you. A whole language. You are that holy spirit. On earth now we learn common languages and internalize other holy spirits to speak with others.
With every word we utter we create worlds. Beings. Life. Realities. Every seed shall grow!