Generally, in English, one way in which we describe an insane person is like this: "He is out of his mind." See, if you were out of your mind, would you be insane? Insanity is of the mind always, isn't it? Only if you are in the mind you can be insane. If you are out of your mind, you will be perfectly sane; you will become like a Mansur, or a Jesus or someone who is beyond other people's understanding. Others may think they are insane, but they are the only few sane people that have happened on the planet.
Sadhguru, Of Mystics & Mistakes
enlightenment, insanity, mind