 It's the most important thing that most of us don't know about the universe that we should. For me, it's the greatest gift that modern astrophysics has given civilization. In 1957, a research paper was published, including a leading female scientist, by the way, who under-celebrated maybe one day we'll get a good biographer, or her name is Margaret Burbage. But anyway, they published a paper demonstrating that the atoms in your body, the nitrogen, the iron, the carbon, that all of it are traceable to cosmic crucible deep in the centers of stars. It manufactures them by thermonuclear fusion. The star explodes, scatters that enrichment into gas clouds that make the next generation of star systems, such as we. So it's not like you're out in the universe looking up and you say, yeah, I'm alive in this universe, but I feel small. No, the universe is alive within you, and you should feel large. Or as the wise teacher once said, the kingdom of God is within you.