Sahasrara

The pericarp is golden and within it a circular moon region is inscribed with a luminous triangle, which can be either upward- or downward-pointing.

[4] According to some Tantra traditions Sahasara chakra has no seed syllable, but rather silence, because it is perceived as beyond audible sound.

When a yogi is able to raise their kundalini (energy of consciousness) up to this point, the state of Nirvikalpa Samādhi is experienced.

[6] In some versions of the subtle body, there are actually several chakras, which are all closely related, at the top of the head.

It is said to be the point through which the soul enters the body, creating the chakras as it descends and terminating in the coiled kundalini energy at the base of the spine.

In other descriptions, it is located on the forehead - white, with 16 petals - corresponding to the vrittis of mercy, gentleness, patience, non-attachment, control, excellent-qualities, joyous mood, deep spiritual love, humility, reflection, restfulness, seriousness, effort, controlled emotion, magnanimity and concentration.

Here Kundalini passes into the supreme void, which is the experience of asamprajnata or nirvikalpa samadhi, and becomes Shankhini.

The crown wheel is important within the Anuttarayoga Tantra tradition of Buddhist Vajrayana.

Through meditation, the yogi attempts to unite this drop with the red bodhicitta in the navel, and to experience the union of emptiness and bliss.

At the time of death, a yogi can direct his consciousness up the central channel and out of this wheel in order to be reborn in a Pure Land, where he can carry on his tantric practices, or transfer that consciousness into another body or a corpse, in order to extend life.

Within the Sufi system of Lataif-e-sitta there is a Lataif called Akhfa, the "most arcane subtlety", which is located on the crown.