Swami Vivekanda’s disciple Sister Nivedita, born Margaret Elizabeth Noble, was a Scottish-Irish teacher, social worker, author and mystic. In her book ‘The Master as I Saw Him’, she quoted him as he recounted his transformation from a firebrand, skeptical youth who viewed the world through ratiolist prism, into a monk with a mission. In particular, the Swami spoke passiotely of how his spiritual guru made him a devotee of Goddess Kali: