Seek the self by meditation in this manner. Trace every thought to its origin. Never allow thought to run on.if you do it would be unending.take it back to it’s starting place and the mind would die of inaction. go back question ‘Who am I’? —-Maharishi Ramana.
Comments; To understand this, we should know that mind is only a bundle of thoughts on the self. That is why my Guru St. Nikka Singh gi used to say ,” you goes everyday from three states, as awakning,dreamand deep sleep. in awakning your mind goes outside in worldly objects.in dream you lay on the bed and your mind is still busy and it is.But in deep sleep your mind melts in the self , there you enjoyed bliss but beacuse you does not understand due to illusion or darkness.In Samadhi your mind rest in the self and enjoyes the bliss.
For this practice of observation of mind or same self-inquiry is needed.now it is very easy to understand it but no body can give you, you can not purchase from enywhere, you have to understand it by practice and grace.