Here is an excerpt from my book, The Silent Master: Awakening the Power Within:
Since your Silent Master consciousness is perfect purity, you won’t be working to make yourself pure. You will be working to eliminate the thoughts and emotions which are impure from your mind and environment. You will be taking away what isn’t you in order to leave what is you shining forth.
How will you do this? Two very important mental tools to use are concentration and visualization. We will study these concepts, as well as other specific ways you can purify your mental and emotional energy.