I acknowledge this graphic of Mahavatar Baba from the Net.
In this 88 dharana and 113 verse of Vigyana Bhairava Tantra, Shiva says:
Eyes fixed and unblinking
Reach Shiva state
This technique from Shiva is the basis for the trataka meditative technique practised in yoga.
Typically, the practitioner stares eyes fixed and unblinking at an object, often a lighted candle in a dark room. This meditation activates the ajna chakra, the third eye energy center.
In tantra, the ajna chakra is the highest point of awareness in the chakra system of energy. Beyond this is sahasrara chakra, the crown center, more a gateway than a chakra. We have covered some aspects of the chakra energy system in other blogs in zentocoach. While on the one hand, the chakra system is a representation of the inner energy kundalini that we all possess, normally dormant at the root center, muladhara chakra, it is also related to our physical and emotional systems. Each chakra is connected to a gland, for instance ajna to the pituitary. Each chakra is also related to a mind state, in this case ajna to one’s ego.
Ajna chakra, situated at the middle of the eyebrows, in the third eye point, represented by a twin petal lotus, represents both the eye and the I. You may call it the Eye of the I. When the ajna chakra is blocked, the inner energy that rises thus far manifests a high level of desire for control and authority. This is what the word ajna actually means, command or will. This is the negative aspect of a blocked ajna. The Hitlers and such other dictators who wreaked havoc on millions probably had blocked ajnas.
When the ajna is opened and the energy moves on upwards towards the sahasrara, seeking the union of shakti with Shiva, and mind body with energy, as the ultimate eighth state of samadhi in yoga, one dissolves into mindlessness without ego. Bhagavan Ramana would be a classic example of this as someone many knew till recently. Mahavatar Baba, pictured here, would be another, though a legend rather than a person experienced by many.
The unblinking fixed eye represents a state of totally disengaged state of witnessing awareness. Everything is seen, understood, and experienced with no response from the mind. No ripples come up through sensory perception. In that sense, this dharana continues from the previous one as a means to achieve the state of suspension of sensory perception by using one of the senses.