What Is Life?

"When I consider the short duration of my life, swallowed up in the eternity that lies before and after it, when I consider the little space I fill and I see, engulfed in the infinite immensity of spaces of which I am ignorant, and which know me not, I rest frightened, and astonished, for there is no reason why I should be here rather than there. Why now rather than then? Who has put me here? By whose order and direction have this place and time have been ascribed to me?"
-Pascal

Is there any significance for life in a Universe of billions of stars that ignore us? Is there any significance for life in an Universe whose dimensions and nature overcome our understanding?
Who are we on this planet and does our existence even matter?
Would we ever truly be able to know the reason for our lives.
Is the reality we know a reality imposed to us by nature? Is the reality and the meaning of life a creation of men, such as music, or love or colors -science tells us that there isn't such things as music, harmony or colors in the physic world. Just traveling molecules!
Is human life mostly a dream, from which we never really awake, as some thinkers claim? Are we submerged by our feelings, by our loves and hates, by our ideas of good, bad, beautiful, awful? Are we incapable of knowing beyond those ideas and feelings?
As William Shakespeare said:
We are such stuff
As dreams are made on, and our little life
Is rounded with a sleep…