ICU always reminds me of the pachinko parlors I saw in Japan---lights going on and off, alarm bells, thumping and howling noises, you name it---just major overstimulation of the senses. The opposite of restful for sure. Important place but boy is it hard on people.
"My predominant feeling is one of gratitude. I have loved and been loved;I have been given much and I have given something in return...Above all, I have been a sentient being, a thinking animal, on this beautiful planet, and that in itself has been an enormous privilege and an adventure." O. Sacks