In general, Kyanite will not accumulate or retain negative energies or vibrations. The energy of Kyanite is unlimited in application,  making  it one of the best attunement stones.

Blue Kyanite aligns all chakras immediately and automatically with no conscious direction. If directed with the consciousness however, the energy can also open the chakras and align the emotional, intellectual, physical, spiritual, ethereal, and astral bodies. It brings tranquility and a calming effect to the whole being, with particular focus on the Third Eye and Throat Chakras. Stimulates communication and psychic awareness on all levels. Dispels anger and frustration. Blue Kyanite provides for balancing of the yin-yang energies, dispels energy blockages and facilitates meditations.

Black Kyanite empowers manifestation of vision and clairvoyance in real time. It pushes visionary abilities deep within the self to be harnessed by physical abilities and discipline. Like its sister, Blue Kyanite, it is very helpful in meditation. It is also excellent to use during hypnosis. Black Kyanite has been said to be grounding, but please take heed, it really does not possess the mineral structure to truly ground.

Green Kyanite allows for a deep meditation in which to draw on the loving and healing qualities of the Heart Chakra. Green Kyanite my assist in alleviating depression through seeing the "light at the end of the tunnel." It stimulates the incorporation of dream work and visions into daily life. The energy  of Green Kyanite is feminine and may be more attractive to those wishing to support receptive qualities in themselves as well as female visioning power.