Khecarī mudrā (Sanskrit, खेचरी मुद्रा)[1][2] is a hatha yoga practice carried out by curling the tip of the tongue back into the mouth until it reaches above the soft palate and into the nasal cavity.[12][13] A hatha yoga text, the Khecarīvidyā, states that khechari mudrā enables one to raise Kundalini and access various stores of amrita in the head, which subsequently flood the body.[16]A tantric Saiva text, the Mālinīvijayottaratantra, warns: [If] his mouth fills with a slightly salty liquid that smells of iron then he should not drink it but spit it out.[18] Bhattacharyya defines Khecarī Mudrā as the "Yogic posture which bestows spiritual attainment and enables one to overcome disease and death.""[b][21] Abhinavagupta, in his Tantraloka, states that all other mudras derive from khecarī mudrā, which he describes as "the stance of moving or flying through the void of the supreme consciousness.