What was the primary focus of the Brahmo Samaj when it was formed in 1828?

(c) Emphasis on Upanishads and Hindu tradit The Brahmo Samaj, founded by Raja Ram Mohan Roy in 1828, primarily focused on reforming Hindu society by emphasizing the teachings of the Upanishads and the monotheistic aspects of Hinduism. The Brahmo Samaj rejected idolatry, rituals, and sacrifices, advocating instead for a return to the pure, monotheistic roots of Hinduism as found in the Upanishads. The movement aimed to purify and modernize Hinduism, promoting social reforms and the idea of a single, formless God.