The motivation of the film comes from the idea of tantrism. Tantric sex is a part of the Taoism that teaches us hoy to use sex to elevate our vital energy of the body and not to lose it how it happened in the conventional sexual relationships.
Considers that sexual energy is the more powerful we have and that thanks to it we can regenerate ourselves obtaining more health, creativity and energy to our bodies/minds. Pleasure dull and even it can stultify but if you know how to use it as a springboard, helps to elevate the conscience.
One of the pleasures that more compulsively pursue and more can arrive to confuse is with frequency the sexual. That became like this, when starts to be obsessive, creating an obstacle in the way of the auto-realisation. But Tao’s philosophy converts it in ally, living it with correct understanding, sacralising the sexuality and converting it in erotic and mystic.