Enlightenment of making friends: Birds of a feather flock together, and people with the same smell can play together!

Some apes like to live in trees, but when the trees are destroyed, they are scattered.

Enlightenment of making friends; The tree falls apart, and some friends are attached to you purposefully. When you lose that function, you become your stranger!

The beaked bird helps the crocodile clean its mouth, but the crocodile doesn't swallow it.

Enlightenment of making friends: mutual help and mutual benefit!