These stars, the high mass ones among them, went unstable in their later years. They collapsed and then exploded, scattering their enriched guts across the galaxy--guts made of carbon, nitrogen, oxygen, and all the fundamental ingredients of life itself. These ingredients become part of gas clouds that condense, collapse, form the next generation of solar systems--stars with orbiting planets--and those planets now have ingredients for life itself.
So, when I look up at the night sky... And I know that yes, we are part of this universe, we are in this universe, but perhaps more important than both of those facts is that the universe is in us. When I reflect on that fact, I look up... Many people feel small, because they’re small and the universe is big, but I feel big! Because my atoms came from those stars...
There is a level of connectivity; that’s really what you want in life. You want to feel connected. You want to feel relevant. You want to feel like you're a participant in the goings-on of activities and events around you. That’s precisely what we are, just by being alive."
-Neil deGrasse Tyson