A few weeks ago I wrote about theologian Marcus Borg's classification of four types of faith. One of these types, assensus, is a faith of the intellect only. It involves believing something to be true in the absence of evidence. The next two—fidelitas and fiducia—involve actions of the will. These can be summed up by the English words "faithfulness" and "trust", respectively. The last one, visio, is best understood as a new way of seeing.