CATDOLL : What does stepping on milk mean to cats?

Kneeling is an instinctive behavior of cats that originates from their infancy. When kittens are feeding, they will use their front paws to massage the mother's breasts. This action helps stimulate the secretion of milk and ensure that the kittens can get enough food. This behavior is usually retained when cats grow up and becomes a manifestation of relaxation and pleasure.

When cats knead milk, they often show expressions of contentment and intoxication, probably because kneading milk brings a sense of psychological comfort and memories of their childhood.