The answer to this question will be to take a look at the Mandelbrot set. the more you dig in the more you find the same thing, it is like having the first look that equals the infinitely defined look.
So, the existence of the universe has a purpose of its own, there are far more stars and galaxies than humans and animals, they interact continuously too, they are alive, since we talk about the newborn stars and the dead stars, black-holes like graves of the universe or better yet cemeteries in the universe, billions or trillions of galaxies moving in an orderly fashion. this order which seems too complicated for humans to comprehend even if they can observe it with instruments that prolong their limited natural means, may appear as complete chaos, yet the scientists know that order exists within chaos.
So if the whole universe behaves like humans with the same eternal cycle of birth and death, it means it has an existential purpose reflected on all lively things that it encompasses, which translate to one word: life.
This is the existential picture, I did not even mention all the minute details involved in this mechanic, be it the physical sciences, the mathematics, the engineering sciences and more, that are limited by the physical limits of the human mind, _since humans can only see, hear, feel and think in very limited frequencies in a universe of all frequencies_, while there is seemingly a limitless mind governing the universe. If we take a simple example of a galaxy and how the movements of all the stars it contains are coordinated, you can ask any physicist how mind boggling is that, Now let alone how the whole universe is coordinated in its seemingly infinite movement(s). So any intelligence behind this fluid (I mean well oiled) mechanic must logically be infinite in scope.
This, I think is the principle that led early high thinking humans to come up with the concept of a GOD, not Gods, since even they would be subject to some kind of coordination or management by someone or something. Monotheistic religions followed this path of thinking and humans as usual managed to distort it to an extent where it lost its fundamental principle.
Only the religion of Islam kept is scientifically sound and simple enough for whom it may concern to find out the purpose of this life, and that is to surrender (live in harmony with this will of the forces of the universe and more precisely the one who govern them, the almighty GOD) while being active (living its own life).
Please do not get me wrong, I mentioned the concept of Islam, not the Muslims, since some of them understand it and others do not. This concept is the closest I have found relating to the scientific analysis of the universe and the meaning of life in it.