The Mother of the Sri Aurobindo Ashram: Co-Creator of the Integral Yoga analyzes the contributions of the Mother (née Mirra Alfassa, 1878-1973) to the Integral Yoga that she and Sri Aurobindo (né Aurobindo Ghose, 1872-1950) co-created for his ashram. Scholars have ignored Mirra for Aurobindo, which prevents a full understanding of their spiritual practice. Scholars have also avoided examining work Aurobindo produced after they began their partnership in 1920 until his death in 1950, and privileged the written output in his journal Arya from 1914 to 1921. In this initial fertile period, he put forth his innovative teaching about what he called the “Supermind,” an emergent human faculty that he said would manifest a new humanity and a new earth through Mirra’s body. Mirra claimed that after his death in 1956 this manifestation happened as he foretold. Mirra’s work in the ashram from his death until hers in 1973 reveals important ways that she both fulfilled and changed Aurobindo’s initial vision. These developments are chiefly based on her experiences of mental dissolution while her body gained a new supramental form and consciousness.