Messner and Habeler both report hallucinations, out-of-body sensations and “phantom companion” experiences.
Close friends say that neither was the same afterwards.
Anybody who has attempted high peaks will tell you its mostly about enduring misery.
Doesn't surprise me in the slightest. Especially the misery bit. Knew a LAME back in the mid 80's who did some serious climbing and he said much the same thing.
You still around,
Kenya?