I came across this article, and really enjoyed it. I though others might find it useful.
“Draft No. 4” by John McPhee, The Writing Life, New Yorker Magazine, 22 Apr 2013
In part, in response to a student complaining of writer’s block:
“Dear Joel: You are writing, say, about a grizzly bear. No words are forthcoming. For six, seven, ten hours no words have been forthcoming. You are blocked, frustrated, in despair. You are nowhere, and that’s where you’ve been getting. What do you do? You write, ‘Dear Mother.’ And then you tell your mother about the block, the frustration, the ineptitude, the despair. You insist that you are not cut out to do this kind of work. You whine. You whimper. You outline your problem, and you mention that the bear has a fifty-five-inch waist and a neck more than thirty inches around but could run nose-to-nose with Secretariat. You say the bear prefers to lie down and rest. The bear rests fourteen hours a day. And you go on like that as long as you can. And then you go back and delete the ‘Dear Mother’ and all the whimpering and whining, and just keep the bear.”
There are numerous other insightful examples - enjoy!