The Buddha and the act of smiling
The Buddha smiles many times in the suttas, in fond remembrance of experiences that brought great wisdom.

MN83:2.1: Then the Buddha smiled at a certain spot.

The Buddha does not smile at the suffering of others. His smiles are never cruel. His smiles are for the remembrance of great wisdom and insight that can be shared. The Buddha smiles for us all, never against any.

MN83:21.16: Ānanda, I say to you:
MN83:21.17: ‘You all should keep up this good practice that I have founded. Do not be my final men.’”
MN83:21.18: That is what the Buddha said.
MN83:21.19: Satisfied, Venerable Ānanda was happy with what the Buddha said.
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