The colliding galaxies have nearly engulfed one another since they first began to unite around 100 million years ago, triggering an intense period of star formation. -when galaxies collide
Now when I come to think of it, every single thing felt so temporary. It comes and it goes. It happens and it ends. While the future is yet to come, the past has already ended. No matter how hard you try to grasp and to hold on to memories, it all vaporized.
You can work hard and plan for the future but you never know what's gonna happen. You can try to look back at the past but you're unsure whether it really happened or it's merely just a fantasy.
added later:
I need to put here the link from comment, a passage by Olafur Arnalds, it represents what I really wanted to say:
"Memories. Memories blur into dreams. Light brings them to truth. Everything unforgiving. everything becoming hallow. Loneliness consumes and there is no way back. The places you played, the places you called home, the people you thought you loved, all of them, reduced to a memory of another life. A life you never lived. All the yesterdays that can't form a tomorrow, all the tomorrows that never came from yesterday. A new beginning because forever is never forever."
