The phrase by Swami Vivekananda usually refers to his teachings on concentration, meditation, and the untapped potential of human consciousness. However, the addition of "hot" to your search query makes the intent a bit unclear.
Something else related to discussions surrounding his work? power of mind swami vivekananda pdf hot
A of his specific lectures or books (like Raja Yoga )? The phrase by Swami Vivekananda usually refers to