The real buddha is the nature of our mind. Right now, our buddha nature is covered by obscurations that we need to purify. We also need to gather the two accumulations of merit and wisdom. A practice in which we think that the buddha is outside of ourselves, while ignoring the buddha within, will, by itself, never bring complete enlightenment. If we expect an external buddha up there in the sky to give us all the common and supreme accomplishments, we are merely placing our hopes in an outer object. The ultimate deity is within our own mind. We attain enlightenment by recognizing our true nature and training in that recognition.
--Tulku Urgyen Rinpoche