"I know that for the right practice of it, the heart must be empty of all other things; because God will possess the heart alone; and as He cannot possess it alone without emptying it of all besides, so neither can He act there, and do in it what He pleases, unless it be left vacant to Him.  

There is not in the world a kind of life more sweet and delightful than that of a continual conversation with God.  Those only can comprehend it who practice and experience it; yet I do not advise you to do it from that motive.  It is not pleasure which we ought to seek in this exercise; but let us do it from a principle of love, and because God would have us."