The Sufi avoids all unrhythmic actions; he keeps the rhythm of his speech under the control of patience, not speaking a word before the right time, not giving an answer until the question is finished. A contradictory word he considers to be a discord unless spoken in a debate, and even at such times he tries to resolve it into a consonant chord. A contradictory tendency in a man finally develops into a passion, until he will contradict even his own idea if it happens to be pronounced by another. The Sufi in order to keep harmony 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 basis for every conversation with an appropriate introduction, thus preparing the ears of the listener for a perfect response. He watches his every movement and expression, as well as those of others, trying to form a consonant chord of harmony between himself and another.