963 Hz is a frequency believed to be associated with transcendence and unity in some alternative healing practices and spiritual traditions.
According to some sources, 963 Hz is said to be the frequency of the pineal gland, which is a small endocrine gland in the brain that produces melatonin and plays a role in regulating sleep-wake cycles. The pineal gland has also been associated with spiritual experiences and consciousness expansion in some spiritual traditions.
Some proponents of sound healing and meditation suggest that listening to music or tones played at 963 Hz can help to stimulate the pineal gland, enhance spiritual awareness and connection, and promote feelings of unity and oneness with the universe.