Muscle testing is one way to receive answers from your Higher Self.  Muscle testing is typically used to obtain information on the causes of physical symptoms of the body.  In my work shop, we use muscle testing to simply communicate with ourselves.  There is no particular  focus other than to get answers to whatever questions you choose to ask.  You can get the answer to any "yes" or "no" question.  To get the most accurate response, your question should be clear and simple.  It's important to know that the question actually comes from your thoughts, and not your words.  Be sure to open yourself to know your own truth and then you will not bias the answer.

One technique of muscle testing: Using the predominant hand, rest the middle finger on the nail bed of the index finger, as shown in the photograph.  Ask a yes or no question and, using the middle finger, press down on the index finger while the index finger resists.  If the index finger is strong, the answer is "yes"; and if weak, the answer is "no".  The difference in the feeling of strong and weak can be very subtle.  It may take some practice to begin recognizing the subtle differences.