Meditation simply means a discipline that makes you capable of being aloof and detached from your mind. So even if the mind is sick, your consciousness is never sick. Even if your mind is going crazy, you are just witnessing it. Mind is only a machine. You are not. Meditation is the experience: "I am not my body, not my mind - I am the witness of it all." This experience, this transcendental experience, immensely transforms the whole situation. Many things which were driving you crazy simply drop away.