On calling, and the lost fairy-tale art of apprenticeship

All of my retreats and online courses, and much of my writing, in some way involve an exploration of the theme of 'calling'. Calling is neither 'fate' nor 'destiny' and, to me, has little to do with the job you do — though it can have, of course, if you happen to fulfill whatever purpose you believe you have in life primarily through your occupation (th…