Self gradification, whether it be narsistic, sexual or theariputic including any combonation this should cover the base of it. Now we can go further and define it but I have never seen a situation where it was a "have to" to live. I would verture to bet that in almost all situation the urge comes from a need for sexualality and stimulation to what ever degree, I have found it true that at my age the big "O" is not always the climax to stimulation, a pysical act is not even called for except the touching and feel of the clothes and application of makeup, sometimes and most for me is just relaxation and be able to escape the problems and worries of the moment. Recess, if you will! But for the new beginners it is more intense, I would lay odds on it if the truth could be revealed in each case.
