The Fifth Instruction is Controlling
At this point [having achieved Close Placement], gross conceptions have been somewhat pacified, like a slowly flowing river. When you focus your mind upon the object you feel joy. Because you meditate for longer periods it is called Controlling.
The Sixth Instruction is Pacifying
With discursive thought being much reduced, like a slowly flowing river, your mind can naturally drop into its focal object. Your love of meditation increases tremendously and your experience bliss. The grosser delusions are pacified, hence it is called Pacifying.
Excerpt of text written by Khenpo Karten Rinpoche, from the book Precious Teachings, chapter entitled “Nine Instructions for Concentration Meditation,” page 110 in the paper book, and page 118 in the PDF version.
