ohok
well it all comes from a philosophy named absurdism
Albert Camus being the founder of said philosophy I believe.
he wrote an essay about the Greek myth of Sisyphus, and it's commonly referenced when talking about this.
Camus reasoned that there are three reactions when faced with the meaninglessness of the universe. (It's a bit of a form of nihilism so it assumes the universe is inherently meaningless, which I believe.) One being suicide, obviously bad. Refusing to play the game, rejecting the absurdity of life. The second being religion, trying to create a purpose to fill the void via faith that things aren't meaningless at all. The third being the school of thought in question absurdism. Understanding the absurdity of a meaningless existence, and rebelling against it by continuing on anyways. Rolling up our own boulders up the mountain so to speak, even if it will eventually roll down anyways. Not being bound by objective purpose, I find the concept liberating