So, if I am reading this right, .. you had a dream that you were in your meditation room trying to open your third eye or crown chakra. Prior to this you actually were in your meditation room thinking about how to open your third eye. Cause and effect?? You wanted something and so dreamed about it? Wanting it so much and thinking hard about it, this seems to have brought about this bout of dreams.

Question, how is the meditation? Are you in your thoughts? Or are you sitting aware and in silence. Some people have a misunderstanding. They believe that meditation is letting their thoughts flow. Some even believe that they must silence their thoughts. Neither is right. Buddha having heard the fisherman say that holding on too tight the fish will escape and holding too loose the fish will escape. It was then he discovered the middle way. One must not hold thoughts off and one must not let thoughts flow. It is in the middle where concentration holds the attention. Thoughts may flow but one is not carried away. One has silence but not held by force.

Having intentions of opening chakras is not a problem but the desire comes to act on its own upon the person having the desires. And, so, the dreams and the intense feeling upon the brain. Some Zen practice called hou tou is intense and can produce similar effects. There are Koans. Like, What is the meaning of “MU”? Constant thinking and questioning, the mind is absolutely absorbed in MU. Or, what is the sound of one hand clap? Then totally absorbed to find an answer, suddenly a burst and the mind sees a glimpse of the truth of the nature of ourselves. Sometimes no mind is opened and sometimes it works. It all depends upon the person.

I would encourage you to find a teacher who can actually help you. And a Sangha that can bring about the effort you need to go forward. Good Luck.