In retrospect a lot of his lyrics might point to AS; 'Help!' is another one, 'Yer Blues' could be another (although a bit morbid), 'Mother' which was a Plastic Ono Band one, and 'Mind Games'. All of these have lyrics that, if read literally, could lead to a possible link. But it's hard to say. If he was, he is another in a long line of famous people who had it.
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Pagans are people too, not just victims of a religious cleansing program. Universal harmony for all!!
Karma decides what must happen, and that includes everyone.