Following her Hollywood years, Rambova delved into the teachings of Theosophy and other occult traditions. She became fascinated by the idea of hidden knowledge and the interconnectedness of all things. Her intellectual curiosity led her down a path of esoteric exploration.

Rambova studied astrology and other symbolic systems, seeking to understand the influence of cosmic forces on human life. She believed that these systems could provide insights into personal destiny and the workings of the universe.

Rambova's interest in spirituality led her to study ancient civilizations, particularly those of Egypt and the Near East. She believed that these civilizations held profound spiritual knowledge that had been lost or forgotten. She actively participated in archeological digs.

Rambova documented her spiritual and intellectual explorations in her writings, which included scholarly articles, essays, and possibly unpublished manuscripts. She sought to share her knowledge and insights with others, contributing to the broader field of esoteric studies.