If science-as-meaning has a saint, it's Sagan. He could explain the universe and make you feel something about it — which almost nobody can do.
His most famous moment: he had the Voyager spacecraft turn around from the edge of the solar system and photograph Earth. It came back as a single pale blue dot, smaller than a pixel. Then he talked about it — everyone you've ever known, every war, every love, all of it, on that one speck.
It should make you feel insignificant. Somehow it does the opposite. It makes the speck precious. And his other famous line — 'we are made of star-stuff' — is literally true. The carbon in you was cooked inside ancient stars. You are the universe looking at itself.
When you're lost, that reframe is medicine. You're tiny, yes. You're also made of stars and briefly awake to notice. That's not nothing. That's astonishing.