the " third eye " is simply your mind, think of the mind as a database, and you keep updating it with new files " knowledge ", you have to give it time " meditation " to analyze and organize the files.

if your data base sees that it needs more storage, your mind expands, that's why you can't force people to understand, their mind need time to process it, that why some people can't take it.

it's like God, why would you want to try, to understand something, you know your mind can't understand.