An underactive ajna can lead to confusion, lack of focus and purpose, and depression. An overactive ajna, on the other hand, can lead to hallucinations and disassociation from the physical world.
Practicing yoga and meditation can help balance the ajna. This chakra is particularly important in Kundalini yoga and most of its techniques, including pranayama exercises, aim to nourish the ajna’s energies and cultivate one's intuition. Ajna’s seed syllable, om (or aum), is a mantra that can also help access the powers of intuition and insight.
Spiritually, this chakra can lead to a higher level of consciousness and a realization that the self and universe are one. Some believe it can access clairvoyant abilities and destroy the negative feelings and effects of one’s current and past lives. This is because each physical eye is seen to represent the past and present, while the ajna, or third eye, sees the future. The deity associated with the ajna, Ardhanarishvara, symbolizes this unity and foresight as a combination of both Shakti and Shiva.
In addition to yoga and meditation, other strategies that can help unblock the ajna chakra are stargazing; listening to classical music; wearing indigo; smelling patchouli, myrrh and frankincense essential oils; and carrying or wearing amethyst, tourmaline and tanzanite gemstones.