The bit on page 442:19-25 of S&H is interesting. You see, we sometimes do things that help to put the corporeal picture out of the way, and this changes a belief of discomfort to one of comfort because it is the nearest right at the time. But the real purpose of Science is always to melt the belief that Life or capacity was ever outside Mind, and this melted belief is the only really improved belief, for spiritual understanding has replaced belief, and so it can never return.
So we do not stay with changed belief but with melted belief, and we go on rejoicing in the spiritual fact of your true capacity that has never lapsed and never been restored.