Those who promise enlightenment through sexual intercourse are chosen the path of ignorance.+

Sex and the sexual act is not the means to Self-realization, because the Self is genderless and ever formless. Sex implies duality.  

The tantric sex is a theory based on the false self (you) within the false experience (waking).  When the world in which you exist is an illusion, thus having sex within the illusory world is bound to be an illusion.  

The Self is not you. The Self is the formless Soul, which is present in the form of consciousness. The Soul is genderless because it is formless, timeless and spaceless existence. 

You are part of the illusory world. Sex or sexual activities will not awaken the Soul from the sleep of ignorance. 

Sex has nothing to do with the sexless Soul, the Self, which is ever formless.

Those who promise enlightenment through sexual intercourse are chosen the path of ignorance. Thus, tantric sex is nothing to do with the ultimate truth or Brahman.

Even Sage Sankara when challenged that he knew nothing about sexual intercourse, went and had intercourse with a widow.

The story of Sage  Sankara's life of going to Benares occupying the body of another man and then having sexual intercourse with his wife is a story cooked up by the orthodoxy by hiding the real fact.

 The story of his Soul temporarily occupying the body of somebody else whilst doing that is only sheer imagined by the orthodox Advaitic followers.

Sage  Sankara had a scientific spirit and when told by Saraswati the woman that he was talking emptily about sex, being a Sanyasi, he at once went to learn the truth by having actual intercourse himself’ and thus learning by experiment and observation. 

Remember:~  

Having food or no food, Having sex or no sex, wearing clothes or being naked does not qualify you to get self-knowledge or Brahma Gnana or Atma Gnana. 

The sex is nothing to do with the Soul, the  Self.   Sex is a reality on a physical base. When the body is not the experiencer of the body itself, it is not correct to be judgemental on the ’I’ (physical base).

Until one becomes aware of the formless entity, which is witnessing the body and the world together, he will not be able to know and realize man and his experience of the world is an illusion. Therefore, it is necessary to become aware of the formless witness to know the experience of the birth, life, death, and the world mere an illusion.

If the experience of the birth, life, death, and world is an illusion, then the sex also is part of that illusion. The seeker has to learn to view and judge the worldview on the base of the formless witness, which is the Soul the Self, to understand and assimilate the truth beyond form, time and space.

 The sex-based theories of enlightenment are merely a theory based on the false self (ego or the waking entity) and false experience (waking or universe). Sex is not meant to Self-realization. : ~ Santthosh Kumaar