For an average person six hours of sleep is sufficient. Sleeping longer is a cause of disease. Exercise Regular exercise according to your constitution is very beneficial for good health. Yoga is considered the ideal exercise. This communication is seen as necessary nourishment for our ongoing physical, intellectual, emotional, and spiritual growth.
Many examples exist across cultures and religious traditions of sounds that are considered healing.
Most religions have chants that serve the purpose of nourishing the spirit. Ayurveda uses such sounds for balancing and healing by having the person direct the sound to whatever part of the system that needs to be balanced. The mantra used in meditation is one such sound that is internalized and used as a means to communicate with spirit. Sight can be a channel for focusing the mind as well and communing with spirit. A yantra is a visual version of the mantra.