What did mary cassatt express in her mother and child

She documented and preserved her view of the world.

Cassatt's paintings of mothers and children reflected the closeness mothers have with their kids even though she never had any kids. It describes a personal theme that Cassatt dominated over, and that is the connection between a mother and a child, within the structure of the women's inner lives and psychology. The painting represents a devoted scene of motherly affection and admiration.