gymnosophy
/ˌɡɪmnəˈsɒfi/Definitions
1. noun
the practice or state of being a gymnosophist, or a philosophy or way of life based on the teachings of the ancient Indian sages who practiced it, often involving renunciation of worldly possessions and desires, and a pursuit of spiritual enlightenment.
“The philosopher’s interest in Eastern spirituality was rooted in her study of ancient gymnosophy.”