Keep in mind the principle of doerless doing:
The doing is done but no doer is there.
The path has been walked but no walker is there.
This verse refers to the arahant, the one who has practised Dhamma, or who has walked the Noble Path to its very end and who has reached Nibbana, but with no walker or no practiser to be found.
The principle of doerless doing must be taken up and utilized in our daily lives. Whether we're eating, sitting, laying down, standing, walking, using, seeking, whatever we're doing we must have enough truth-discerning awareness to prevent the arising of the feeling of 'I'- the feeling that 'I' am the doer, 'I' am the eater: the walker, the sitter, the sleeper or the user. We must make the mind constantly empty of ego, so that emptiness is the natural state and we abide with the awareness that there is nothing worth having or being.
http://what-buddha-taught.net/Books/Bhi ... _EMPTINESS