The inquiry into the self, is inclusive of faith, devotion, Jnana,yoga and all.—- Maharishi Ramana.
Comments; In these words meaning of Maharishi is that self-inquiry has already a fruit of faith, devotion.Jnana, yoga. Because the purpose of these things was to achieve self-realization. And I can say without any doubt it is absolutely right. Our purpose is to find eternal peace which is already there, but we do not believe in ourself. By self inquiry or Vippassana we remove our thoughts and in result we find bliss which was already there. So, according to my experience by these methods, we only minimize our thoughts and as you know if there are clouds in the sky we cannot see the blue sky. But in the absence of clouds we are able to look blue sky.Likewise by self-inquiry (meditation) we remove our thoughts and find bliss in result of it. This stage we say Samadhi.