“Knot,” an energetic and psychic contraction preventing the free flow of prana (energy) along sushumna nadi. Such a knot is seen as a tangle of nadis (energy channels). The granthis impede the awakening of the chakras and the rising of kundalini shakti (the fundamental force of our being, generally lying dormant in muladhara chakra). In order for kundalini to achieve its final upward movement to sahasrara, it must first pierce through the three granthis (named Brahma, Vishnu, and Rudra). According to the tradition, these three psychic knots are located at the level of muladhara, anahata, and ajna chakras. Each granthi can be associated with a particular state of contraction of the personal consciousness.