In his impassioned confession in Psalm 51:6, King David said to God, "Behold, you delight in truth in the inward being, and you teach me wisdom in the secret heart." The ancients viewed the heart as the source of one's thoughts, emotions, and choices, that "secret space," the hidden part of the person not readily seen by others. This blog is an attempt to explore the subterranean geography of the heart. As a result of those explorations, we want to bring forth good treasures (Luke 6;45), and acquire "hearts of wisdom" (Ps. 90;12). Wisdom is the ability to live life skillfully. Grace University is one arena, among many in life, where wisdom can be cultivated and spiritual transformation can happen.