== Lights and Visions ==
These lights and visions are not hallucinations. They indicate an opening of the inner vision whose centre is in the forehead between the eyebrows. Lights are very often the first thing seen. Lights indicate the action or movement of subtle forces belonging to the different planes of being,—the nature of the force depending on the colour and shade of the light. The sun is the symbol and power of the inner or higher Truth—to see it in meditation is a good sign. The sea is also often symbolic, indicating usually the vital nature, sometimes the expanse of consciousness in movement. The opening of vision must be allowed to develop, but too much importance need not be given to the individual visions unless or until they become evidently symbolic or significant or shed light on things in the sadhana etc.
<ref>Sri Aurobindo. (2014). The value of visions. In Letters on yoga III.
http://incarnateword.in/cwsa/30/the-value-of-visions#p27</ref>
The image of the Akash is often seen by sadhaks in Dhyana. When the consciousness is liberated, whether in the mind or other part, there is always this sense of the wide infinite emptiness. From the top of the head to the throat is the mental plane of the being—a similar opening and emptiness or wideness here is the sign of the mind being freed into the Universal.
<ref>Sri Aurobindo. (2014). The universal or cosmic consciousness. In Letters on yoga III.
http://incarnateword.in/cwsa/30/the-universal-or-cosmic-consciousness#p39</ref>
One has in his consciousness the feeling of rising above what is obscure and ordinary and unconscious, of raising himself—because usually our head is on top and our head is more conscious than the rest of our body—and the impression that there is above him a greater consciousness. So when one makes an effort to progress, at the same time one makes an effort of ascent. Sometimes one has even symbolically the impression of climbing a mountain and wanting to reach the summit, that is, as close as possible to the free expanses of the light, of what is purer. And if one doesn't take care, quite naturally, spontaneously, one slips back into the ordinary consciousness.