A TV celebrity recently spoke of the anxiety and depression he felt upon learning his diagnosis of pancreatic cancer. These normally occur when serious illness threatens. And also, for that matter, following a cognitive or physical disability for either can reduce a person's normal functioning ability.
The diagnosis of cancer may well have a unique anxiety-bearing capacity for it possesses similarities to those of the unconscious mind, which are widely feared: its occurrence is unexpected and arising from nowhere; seemingly irrational; and experienced as all-powerful. But this is false since every unconsciously-derived act has a valid reason, even those which appear senseless. In one published case a surgeon felt compelled to repeatedly, publicly expose himself despite the legal and reputation risk until psychotherapy revealed that, by doing so, he was boasting to his mother how powerful he was, as he had wished to do when a toddler.
One member of the clergy, a three-time survivor of cancer, advised the following: that, when afflicted by serious illness, pray, but also get the best medical advice possible.