Chapter 5: Monastic obedience (paragraphs 1-3)

The first step on the way to humility is to obey an order without delaying for a moment. That is a response which comes easily to those who hold nothing dearer that Christ himself. (From para. 1 of Ch. 5 of Saint Benedict's Rule, trans. by Patrick Barry, OSB, 1997.)

It makes sense to me that Benedict would put a chapter on obedience right after a chapter on good practice.  Obedience of the heart means a loving responsiveness to God, to the other, to reality.