The vajra prong symbolizes the invincible, invincible wisdom and true Buddhahood. It can cut off all kinds of troubles and destroy all kinds of demons that obstruct monasticism. It is the hold of esoteric deities or the magical tool of yogis. All the deities of the Vajra Department of the Mandala Sea Club hold the Vajra Pestle. Mantra-doers also often carry it, and the cover symbolizes the Tathagata Vajra wisdom with this pestle, which is used to break away the inner and outer demon barriers of foolishness and delusion.