What is the practice method of Tantric Buddhism?

The practice method of Tantric Buddhism is to cultivate three secrets: body secrets refer to fingerprints, and various movements of Buddha are printed with different hand gestures; Mouth secret refers to reciting the truth (mantra), symbolizing various Buddha statues; The secret of meaning refers to the truth of the mind and symbolizes the Buddha's thought. Buddha corresponding to these three aspects can become Buddha. Tantric rituals are very complicated, and there are strict regulations on altar setting, sacrifice, chanting and initiation. Moreover, it is not allowed to teach and show to others without the secret teaching of the tutor.