Nature of mind (Sanskrit: cittatā or citta-dharmatā; Tibetan: སེམས་ཉིད་, semnyi; Wyl. sems nyid) may refer to:
Dharmatā, also called suchness or thatness (Tathātā), the true nature of all things in Mahayana Buddhism Svasaṃvedana, the self-reflexive nature of consciousness in Buddhism Mahāmudrā, the unity of awareness and emptiness in the Kagyu tradition of Gampopa