We are not supposed to be doing it but many do. The end goal is to integrate our personalities. When our upbringing isn't the best for us we become fragmented and all of our parts don't work together. We should be at one with our feelings and work with them. I had to learn a lot of this. The first step is recognizing your feelings. You can do this by becoming aware of yourself and your surroundings at all times. Another term for this is living in the present. Of course many of us grew up not living in the present because it is painful. This can be worked through.