When I was a kid I made up an imaginary friend, it was a small dragon that followed me around and sat on my shoulder. It was cute and orange. I told my dad about it excitedly and he asked me, "why do you need an imaginary friend when you have real ones?" I didn't have a good answer. And I quickly forgot about the dragon. It feels a bit like Space Deer is my imaginary friend too.
Bonus drawing of Snoopy meeting a deer in a space suit. My partner said, "a young and an old soul."