In the Coffin
Isolation is like being locked in a coffin, only this time, the locks are all on the inside. There is no sensation, no input, nothing to bother you or take your attention away from yourself.
Short periods of isolation are sometimes a good thing. Everyone needs a time-out. It’s just that the longer you isolate yourself, the better it feels and anxiety about coming out into public again grows. It takes great strength of heart, mind and body to loose those locks and sit up in the land of the living again. If I were a dog trainer (which I am) I would say that it takes a vast amount of desensitization and counter-conditioning to perform the feat.
Eventually, you must just bite the xanax and bear into the task. It’s better for everyone that you are a monkey-like participant in life and not holed up like a turtle in its shell.