...it is unnecessary to abandon meditation and the activities of the understanding. When, instead of coming through conduits, the water springs directly from its source, the understanding checks its activity, or rather the activity is checked for it when it finds it cannot understand what it desires, and thus it roams about all over the place, like a demented creature, and can settle down to nothing. The will is fixed so firmly...that this disturbed condition of the understanding causes it great distress; but it must not take any notice of this, for if it does so it will lose a great part of what it is enjoying; it must forget about it, and abandon itself into the arms of love...almost its whole work is to realize its unworthiness to receive such great good and to occupy itself in thanksgiving.
- The Interior Castle, St. Teresa of Avila
I'm going to have to read this book a few more times.