Around the seventh century AD[50], Mahayana Buddhism created a set of mystical principles based on absorbing Brahmanism[51] mantras, religious rituals and yoga[52] physical training methods. The religious practice method of color is the completion of "Supreme Yoga Tantra". In "The Secret Sutra of the Buddha's Speech", it is even mentioned that the lotus flower and the vajra pestle are combined, "In this way, you should know that the great Bodhisattva of the Vajra family enters the lotus flower department and respects and loves the Tathagata family." "From this, all the sages are born , to achieve all extraordinary things." This is a word that implies the male and female sexual organs, which is called secret Mahayana Buddhism [53], or "Vajrayana [54]" or "Tantrayana [55]". Compared with Tantra, people call the theoretical part of Mahayana Buddhism "Exoteric Vehicle [56]". Due to the confusion of the boundaries between Tantric Buddhism and Brahmin-modified Hinduism [57], Buddhism is doomed to be dispensable in India.