The Vedas describe the four stages of sound, of which Vaikhari is the last, as follows:
- Paraa, the subtle sound from the origin at the root chakra
- Pasyanti, the sound through and from the navel/solar plexus chakra
- Madhyamaa, the form of sound as it is associated with the heart chakra
- Vaikhari, the sound as it is expressed as speech or noise from the throat, tongue, lips and teeth
It is said that a yogi’s ability to experience each level of sound is dependent on the refinement of his/her awareness and consciousness. Each stage is associated with a different level of existence, with vaikhari being the outermost, or gross, experience. Vaikhari is the physical consciousness and is coupled with the physical body, or sthula.
While vaikhari is traditionally associated with the throat chakra, it is also linked with jaagrat, or wakeful consciousness. It, therefore, has additional connections with kriya shakti, or the power of action.