Well, some say it means happiness. In truth, purring is a sign of emotion. It can be any emotion. Not necessarily happiness.
Well when a cat purrs it is usually when they are happy or they are stressed out
It can mean diferent things. It can mean the cat is fearful or it can mean the cat is happy. It just depends.
A cat came out of a cat means the inner cat took place so acting like a wild jungle cat (tiger, cheetah,lion, bobcat, ect..)
cat is a animal you can buy .