In I Am Here , director Eoin Duffy addresses the strange sensation when we realize our entire lives have led up to one fleeting moment.
It's presented by The National Film Board of Canada, which describes it thus:
A mysterious traveller journeys across space and time in search of the origin of the universe, life, and God. Eventually finding himself alone in the dying light of an aging cosmos, he arrives at a devastating realization. Yet the world continues to spin.
The film features some great voice work and sound design, too. Be sure to watch to the end of the intense four minutes.