"When Carl Jung classified the "rational" functions of the mind he divided them into thinking and feeling. We often consider feeling to be loose and nebulous, but for Jung it was one of the mind's strictly rational functions. Feeling, for Jung, is what assesses the inherent value of things. Feeling looks at the world globally rather than analytically. If thought is not balanced by feeling, then it can become obsessive and one-tracked, giving no attention to the overall meaning of what one is doing. Conversely, if feeling is not tempered by thought, then we are in danger of rushing into events with great enthusiasm and conviction without making proper plans or understanding possible pitfalls."