Would you believe I love this topic? Watch those crazy shows on the Cosmos and the gazillion galaxies, planets, black holes, etc. etc. We are a speck out there, yet waste fortunes going to Mars, the moon, etc. etc. when all that matters is right here.
And what matters? We mostly have to discover that for ourself. Do for others, do for ourself. Love the people around us, love nature, love ourself. Love reading, thinking, maybe writing, learning and whatever is of interest to you. A start.