All the teachings of the victorious ones, all the different kinds of teachings given by the Buddha - if we condense them into one point, it is that they are the methods to tame your own mind.  

They bring peace to a mind that is not peaceful. They clear away the confusion, or bewilderment, in your own mind.

Khenpo Tsultrim Gyamtso Rinpoche, Creation & Completion, Vajravairochana Translation Committee, October 1995 & June 1996, p. 10.  

Translated by Sarah Harding (lightly edited for the Weekly Quote)