The Śūraṅgama Mantra Is the Talisman

The more crucial the stage of spiritual practice, the more interference from Mara arises; the more profound the attainment, the greater the disturbance. Conversely, practices of little significance attract no such demonic obstruction. Therefore, the more essential the Dharma you cultivate, the deeper the teaching you engage with, the more cautious and meticulous you must be. This is especially true for those drawn to supernatural powers—Mara may grant you such powers, only to then control you, trapping you in its grasp. The Shurangama Mantra serves as a protective talisman; it must be recited constantly, and it is best if memorized. When mastered, Mara can do nothing to harm you. If all Buddhists could recite and memorize the Shurangama Mantra, the Demon King would withdraw from the Saha World, the Buddha Dharma would endure, and the Shurangama Sutra would never perish.