It is with the intellect that we contemplate. Christian contemplation is an activity of faith, and faith is an intellectual virtue. The gift of the Holy Ghost which plays a leading role contemplation is wisdom, because, as St Thomas says, it belongs to wisdom, according to Aristotle, to consider the Highest Cause; and wisdom is obviously rooted in the intellect. But contemplation is also intimately linked with charity and is therefore an activity of the will. This is due, St Thomas explains, to the nature of the gift of wisdom; it implies a connaturality with divine things, and this connaturality can come only from charity. He writes: ‘Wisdom denotes a certain rectitude of judgment according to the Eternal Law. Now rectitude of judgment is two-fold: first, on account of perfect use of reason, secondly, on account of a certain connaturality with the matter about which one has to judge. Thus, about matters of chastity, a man after inquiring with his reason forms a right judgment, if he has learnt the science of morals, while he who has the habit of chastity judges of such matters by a kind of connaturality.