All unhappiness is due to the ego. With it comes all your trouble. If you would deny the ego and scorch it by ignoring it you would be free.
Ramana MaharshiMeditation helps concentration of the mind. Then the mind is free from thoughts and is in the meditated form.
Ramana MaharshiYou are the Supreme Being, and yet thinking yourself to be separate from it, you strive to become united with it. What is stranger than this?
Ramana MaharshiKeep the remembrance of your real nature alive, even while working, and avoid haste which causes you to forget. Be deliberate. Practice meditation to still the mind and cause it to become aware of its true relationship to the Self which supports it. Do not imagine that it is you who are doing the work. Think that is the underlying current which is doing it. Identify yourself with the current.
Ramana Maharshi