Swami Vivekananda emphasizes the importance of brahmacharya (celibacy) as a pathway to intellectual and spiritual power, asserting that strict adherence for twelve years leads to extraordinary mental abilities and memory. He advocates for a transformed use of sexual energy into spiritual energy, claiming that this practice is essential for both personal development and the welfare of society. The teachings underline that chastity in thought, word, and deed is crucial for achieving spiritual liberation and maintaining moral strength.