Although it has been said that physical functions are a remnant of animal life, somehow, we have never been able to accept this. All along, we've wondered why nature created this special process. What is the purpose of sexual union?
Sexual union between man and woman is part of the natural law of evolution. In every realm of nature, union between two forces is taking place all the time. Creation of life, energy and matter is not possible unless positive and negative forces unite. It is not the physical body that matters, but the quantum and nature of energy. One of the most important ways of creating energy is through sexual interaction between two individuals.
This is the highest concept, but the individual is still bound by his instinctive nature. He doesn't understand the philosophy of energy. He just runs after pleasure. He is not aware that pleasure is the outcome of the union between the two energy poles. Man and woman come together to have a child. They don't know that the creation of a child is nothing more than the two forces of energy becoming manifest in the mother's womb. Energy interplay is the cosmic law. The sun, moon, stars, ocean and earth, are all the interaction of energy.
Path of Tantra
This homogenous, omnipresent force pervades the body, mind and consciousness. It never stagnates, it is in constant motion. If you do not know how to direct this energy upwards, it finds expression in gross, empirical life. Sages realised this through their own experience and hence devised a system for directing this great force in man which expresses itself in the form of sexual life. This science became known as the path of tantra.
Tantra is not a path of sexual life but a way of channeling sexual energy from a gross to a higher level. This process is not brought about by believing or following any particular line of faith. The sublimation of sexual energy for the purpose of spiritual illumination needs a concrete process of practice. Evidence of this can be seen in the archaeological remains of different cultures.
In the present culture, however, these practices have been lost; what is being experienced is the grosser aspects of sexual life. In modern society there is so much guilt, frustration and psychological disease for one simple reason: no one has understood the higher nature of sexual life.
According to tantra, every man and woman should know the basic fundamentals of sexuality. It should be understood by all that the ultimate purpose of sexual life is the awakening of the root chakra. The momentary pleasure derived from the sexual act is just a window through which you can see beyond, though doubtless, there are many other ways for awakening the spiritual potential. You can do it through penance or fasting, but the easiest and quickest way is through proper physical union. The experience of awakening the kundalini is unbearable. The ordinary orgasm only lasts for a few seconds, and even that short period is explosive. Imagine if it continued for 10 minutes! No one would be able to handle it. Sexual life is a preparation for this awakening. It balances emotions, calms passions, and minimises excitement of mind, so that slowly, you become more aware of inner life.
When a man and woman live together, they must learn to interact with a spiritual purpose, to give birth to the manifestation of energy. Love and affection are not sinful, but there should be clarity and discipline rather than anarchy. Then sexual union becomes a powerful means for awakening higher consciousness.