This document summarizes elements of Eugene O'Neill's play "Mourning Becomes Electra" that reflect aspects of his own life. It notes that O'Neill frequently wrote about themes of pessimism, death, and family dysfunction in his plays. Specifically in "Mourning Becomes Electra", it draws parallels between the suicides and murders that take place in the play and O'Neill's own experiences with death in his family. It also suggests the unhealthy family relationships portrayed in the play reflect issues O'Neill had with his own parents.