I mean, there is no meaning in nature, it was man who invented it, and often it appeared because of a scarcity, for example, the point is in a beautiful woman, because you are unlikely to find another one as beautiful, right?, or can you find a person who will support you and accept you as you are, like your loved ones? The examples are not the best, but I hope you get the idea.
In addition, I will say that about a year ago I watched the film "The Seventh Seal", and now sometimes I feel in the place of a character named Antonius Block. I dismissed the inevitable by refraining from suicide as a teenager, thinking I could find the meaning of life, but what was to be expected, nothing worked out. But especially now, how shall I put it... in the age of AI, it is impossible to escape the truth, self-deception no longer works, at least for me personally.
Chess Game with Death:
I really like that poem "Ozymandias", by Percy Bysshe Shelley. The point of it is: no matter what kind of outsized impact you have on the world when you're alive, eventually no trace of you will remain, and everything you ever were and everything you've ever done will be forgotten.
It's a heavy, depressing message, but I find it to be oddly freeing. If nothing you do will matter in the very long run, then you're free to do whatever you want. Maybe you decide that you don't care about the people 25,000 years from now and focus instead on the people in your life right now. Maybe you make it your goal to make their lives better.
You could succumb to depression and fall into a pit of despair and heavy drug use... but if nothing matters, why not spend your time making other people's lives better instead? It feels good to make other people feel good.
My mentality exactly. My legacy doesn't really matter at the heat death of the universe. Take it day-by-day, dream, care about those you love, but know that literally nobody will care about your mistakes 40 quintillion years from now.