How Do Tantrik Rituals Work?

How do Tantrik rituals work, really? Is it the intercession of spirits and divinities? Or perhaps something far more profound? IIn this talk, I want to make the case that there are no gods or spirits outside Consciousness. The entire Universe and all the powers in it are contained within the Mind, which is an expression of Consciousness, with reference to verses 160 onwards in Abhinava Gupta's Tantrāloka, Part I, and with special reference to Swami Vivekananda's emphasis on strength and non-...