Meditation is the physical action that engages Sahasrara!
It is the seat of wisdom, knowledge, bliss and unity, releasing a sense of Beingness and Interbeingness.
Nourishment for Sahasrara is simple fasting.
Air, oxygen, Pranayama!
Herbs and incense can be burned in ceremonial fashion for purification purposes. Herbs such as sage, copal, juniper, myrrh and frankincense are very good for cleansing the environment.
Sandlewood incense is excellent for everyday meditation.
from Dietary Gudie For Nourishing Your Chakras