In terms of ordinary parlance, thinking has to do with reasoning or cogitating in one’s head. The great psychiatrist, psychoanalyst and depth psychologist Carl Jung used the word ‘thinking’ in a very specific sense.
Jung used 'thinking' to refer to the act of making decisions based on logic rather than on the basis of emotional responses, which he called ‘feeling’. He termed such thinking 'rational', meaning it came from the head.
