The Sutras said:
There is no fear for a person, whose mind is free of passions and not perplexed, who has abandoned the idea of "good" and "bad" and who is watchful... Having understood the hair is the root of vexed...Those, who can restrain the mind, which is going far, wandering alone, bodiless and living in the cave, those will be freed from the bond of Mara.