Tantra Yoga has the powers for the spiritual regeneration in the Hindu religion. When practiced by the unqualified persons, it has led to certain abuses. The original practices, is the theory of the five Makaras (Pancha Makaras)--Madya or wine, Mamsa or flesh, Matsya or fish, Mudra or symbolical acts, and Maithuna or coition.

The esoteric meaning of these five Makaras is: "Kill egoism, control flesh, drink the wine of God-intoxication, and have union with Lord Siva". Tantra explains (Tanoti) in detail the knowledge concerning Tattva, and Mantra. It saves (Trayate). Hence it is called Tantra.  

All persons without the distinctions of caste, creed, or colour may draw inspiration from them and attain spiritual strength, wisdom, and eternal bliss. Mahanirvana and Kularnava Tantras are the important books in Tantra Sastra. Yoga Kundalini Upanishad of Krishna Yajurveda, Jabala Darsana, Trisikha Brahmana, and Varaha Upanishad are useful for getting knowledge of Kundalini Sakti and the methods to awaken it and take it to Sahasrara Chakra at the crown of the head. The Tantra is, in some of its aspects, a secret doctrine. It is a Gupta Vidya. You cannot learn it from the study of books.

You will have to get the knowledge and practice from the practical Tantric, The Tantric student must be endowed with purity, faith, devotion, to Guru, dispassion, humility, courage, cosmic love, truthfulness, and contentment. Absence of these qualities in the practitioner means a gross abuse of Shakti. The Shakti Tantra is Advaita Vada. It proclaims that Paramatman (Supreme Soul) and Jivatman (individual soul) are one. The Saktas accept the Vedas as the basic scriptures.

Tantra Yoga gives special emphasis on the development of the powers latent in the six Chakras, from Muladhara to Ajna. Kundalini Yoga actually belongs to Tantric Sadhana which gives  detailes about this serpent-power and the Chakras. Entire Tantric Sadhana has aims to awakening Kundalini, and making her to unite with Lord Sadasiva, in the Sahasrara Chakra. Methods adopted to achieve this end in Tantric Sadhana are Japa of the Name of the Mother, prayer, and various rituals.