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Master Patanjali and Classical Yoga give us a recipe for controlling the senses...... We are to practice Pratyahara, the conscious withdrawal of the senses away from the outer world. With pratyahara, we make a choice to tune into the inner experience, the inner landscape. This is one reason why many Yoga studios are sparsely decorated and why many Yoga teachers choose not to use music for asana practice. We are encouraging you to go inside, even if only momentarily. We spend so much of our lives with external world focus. Let your Yoga practice be a time for internal awareness and dwelling. Practically in class, we cultivate pratyahara by focusing on our breathing patterns and scanning the physical body for sensations. The pelvic floor technique moola bandha is well suited to develop pratyahara as well because the muscle group is located deep inside the body and we almost always lose the technique if we shift awareness to the outside world by looking outside the window or looking across the room at other Yogis.
When the senses withdraw themselves from the objects and imitate, as it were, the nature of the mind-stuff, this is pratyahara.
Yoga Sutra 2.54
Then follows mastery over the senses.
Yoga Sutra 2.55