The opening of the third eye is gradual at best. These are the things that happen
1) It becomes easier for the eye balls to relax and remain upwards
2) Once it becomes habitual and natural, one realizes that the agna chakra slowly opens upwards
3) When it turns upwards, one can start to see the subtle world easier. Initially it is not as vivid but nevertheless, its presence is very clearly felt without any thoughts of ambiguity
4) Events about to happen become obvious. Initially this is restricted to the immediate future relating to oneself. Slowly more distant events unfold and then events related to family and friends
5) Lately, I have realized that the color of the aura around great individuals is different. Each great Mahatma or liberated soul has a certain characteristic aura. My gurudev Sombargiriji Maharaja, his aura is golden yellow. Kashinathdadas aura is pure white. My connection to Kashinathdada has been with ease today and was continous. I feel blessed.
6) In order to remain established in this position or status, one has to make sure there is not the least bit of emotional reaction
7) This reminds me of the incident when Yukteshwar Maharaja went to vist his Guru Lahiri Mahashaya and could not see Babaji standing in the doorway. He was encouraged to remain more firmly established at the third eye. I am unable to stay there at all times. I can only be there and simultaneously engage in the subtle world and this world rarely.
Bhavin