One of the most spiritually profound moments of my life was when I was sixish and at a natural history museum with my parents that had a whale skeleton hanging from the ceiling.
I remember my dad picking me up to sit on his shoulders (possibly one of the last times he did that because I was getting too big to hold there for long) so I could be close to it's flipper because he wanted to show me something. He had me hold up my arm parallel to the whale's, and explained that we had the same bones, pointing to it's scapula and humerus and radius and ulna and so on while poking the same bones in my skinny little arm, all they way down to the tips of my fingers and it's own.
And in that moment, I could suddenly see how the whale and I were the same animal, just stretched and shrunk into different proportions by nature. There was an entire exhibit with skeletons of different animals and we went through all of them, picking out the hands and faces of all of them on myself.
I had never felt such a profound connection to the world around me before as I realized on a visceral level that not only was I related to all these creatures, they were very literally my distant cousins, and that in a way, they were me from back then and I was them from now, and we all were others still from the future.
Every living thing on earth is your cousin. The most distantly related humans are your 50th cousins. Chimps are your several thousandth cousins. An octopus is your 25 millionth cousin. Trees are your billionth cousins. You and I are surrounded by family. And that makes me feel profoundly loved.
So thanks dad, for pulling your shoulder a bit to show me that I am part of the universe. I love you too.