I love cats too! They often then lie down together and purr. Cats will do the same thing with their owners. Claiming this behavior is no deeper than a wild cat rubbing its face on tree bark is like saying that human handshakes are mostly about checking for secret weapons.
YEESSS!! Understanding cat behavior is a great thing to learn. They are very intelligent in their own way. I love them sooooo much! I even got a cat outline tattoo recently because of my love for them. =)