“I see sentient beings transmigrate into unceasing births-and-deaths, while everyone possesses their own wondrous Tathagatagarbh within exactly the same as that of mine, the ultimately pure nature,” the Buddha stated in the “Tathagatagarbh-Sutra.”
Tathagatagarbh refers to the Buddha nature (also know as the eighth vijnana, the Alaya vijnana); It is the aim for enlightenment.
The Buddhism religion is to teach the cultivation methods of attaining Buddhahood, yet seeing the actual difficulties for humankind in this desire-realm to practice the Buddhahood-Way, so the Buddha had arranged for the three rounds of the dharma transmission in order to gradually uplift the disciples’ level of cultivation.
During the first round of the dharma transmission - the Liberation-Way, the Buddha expounded the Four Agama Sutras.
In Buddhism, the terms “three treasures” refers to the Buddha, the Dharma (Buddhist teachings), and the Samgha (community of monks and nuns).
Samgha are those Buddhists who have taken the oaths and dedicated their entire life to carry out the Buddhist lineage; during their ordainment, they ought to take vows of the Buddhist precepts which focus on the nurturance of morality, tranquility of mindset and ridding selves of desire-driven. Holding the precepts are the most fundamental practice, after which one may engage properly in the practice of samadhi (concentration) and prajna (wisdom).
Among the many precepts, the primary ones are: No killing, no stealing, no sex, no false speech, and no alcohol.
Now we come to the big discussions regarding “sex” in Buddhist cultivation. When the term “vegetarian” is mentioned, we know it refers to a person who does not eat meat and animal products (in terms of Buddhist view); as monks and nuns in Buddhist term, they represent the monastic Samgha who are under the Buddhist oaths to carry out the Buddha lineage. Just to remind you again, the Buddha did not preach for reproduction or proliferation, He expounded exactly the opposite, to terminate the long cycle of unceasing births-and-death.
“To eat and to have sex are human natures” (食色性也) is a well known Chinese proverb, and they are basic instincts for human survival. That is also why this world is categorized as the desire-realm in Buddhism.
Dignifying sexuality practice in any form or name has nothing to do with the Buddhist cultivation whatsoever.
“It is difficult for the correct dharmas to manifest if the erroneous ones are not destroyed 若不破邪，難以顯正.” Bodhisattva Xuanzang (玄奘菩薩) stated in the past.