Tantra is a spiritual practice meant for seekers of the Universal Truth. It is a versatile subject of ideas, principles and rituals, the practice of which liberates the seeker from the fetters of the material world and raises him/ her to the plane of Pure Consciousness. Human body possesses a dormant powerful psychic energy called Kundalini. Tantric practices are used to awaken Kundalini. When awakened, it energizes the chakras and the dormant neurons of the brain. This results in expansion of human consciousness to higher levels. Tantra teaches that the physical universe is an expression of Pure Supreme Consciousness from which matter and energy is manifested. In Tantra, Shiva and Shakti descends as consciousness and matter. Besides yoga and meditation, sexual intercourse is one of the rituals in Tantra. Sex rituals through controlled orgasmic responses of the male and female partners aid in waking up the sleeping Kundalini.