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" What possibilities are there for preventing actions with negative consequences, actions that we may later regret? One possibility is dhyāna, which in this context means “reflection.”3 Reflection can take many forms. For example, when faced with an important decision, you could imagine what would happen if you did the exact opposite of what your instincts suggest.4 Try to make the consequence of your decision as real as possible in your imagination. No matter what it is or what you feel, before you make an important decision and take action you should give yourself the opportunity to consider the matter with an open mind and a certain degree of objectivity. Dhyāna in this respect is a quiet, alert consideration, a meditation. The aim is to free yourself of preconceptions and avoid actions that you may later regret and that may create new troubles (duḥkha) for you. Dhyāna strengthens self-sufficiency. Yoga makes us independent. We all want to be free, although many of us are dependent on psychologists, gurus, teachers, drugs, or whatever. Even if advice and guidance are helpful, in the end we ourselves are the best judge of our own actions. No one is more interested in me than me. With the help of dhyāna we find our own methods and systems for making decisions and better understand our behavior. There are other ways of distancing ourselves from our actions than reflecting on how it would be if we were to act differently from what we intend. We might go to a concert or go for a walk or do something else that calms the thoughts. All the while the mind goes on working unconsciously, without any external pressure. In the pursuit of other activities we gain a certain distance. However short it may be, time becomes available to cast the mind over everything surrounding the decision that has to be made. Perhaps with ease and distance we will make a better decision. Stepping out of a situation in order to get a better look at it from another standpoint is called pratipakṣa. The same word describes the process of considering other possible courses of action.5 The time spent in dhyāna is extremely important. Through self-reflection our actions gain in quality. "
― T.K.V. Desikachar , The Heart of Yoga: Developing a Personal Practice
