Pratyahara (Control of the Senses)
Pratyahara translates as "to withdraw oneself from that which nourishes the senses." In yoga, the term pratyahara implies withdrawal of the senses from attachment to external objects. It can then be seen as the practice of non-attachment to sensorial distractions as we constantly return to the path of self realization and achievement of internal peace.
Pratyahara occurs almost automatically when we meditate as we try to bring the mind to single focus.
The senses entice us to develop cravings for all sorts of things. In pratyahara the opposite occurs: when we have to eat we eat, but not because we have a craving for food. In pratyahara we try to put the senses in their proper place, but not cut them out of our actions entirely.
Much of our emotional imbalance is our own creation. A person who is influenced by outside events and sensations can never achieve the inner peace and tranquility. Patanjali says that this is at the root of human unhappiness and uneasiness. When people seek out yoga, hoping to find that inner peace which is so evasive, they find that it was theirs all along. In a sense, yoga is nothing more than a process which enables us to stop and look at the processes of our own minds; only in this way can we understand the nature of happiness and unhappiness, and thus transcend them both.