In order to keep harmony the Sufi even modulates his speech from one key to another; in other words, he falls in with another person's idea by looking at the subject from the speaker's point of view instead of his own. He makes a base for every conversation with an appropriate introduction, thus preparing the ears of the listener for a perfect response. He watches his every moment and expression, as well as those of others, trying to form a consonant chord of harmony between himself and another.