CONSCIOUSNESS UNDER PRESSURE

Consciousness is the one thing each of us knows with absolute certainty — and the  one thing science has the hardest time explaining. It is also fragile. Certain  molecules, taken deliberately or by accident, can rearrange it within minutes; certain  illnesses can entrench false beliefs so stubbornly that no argument can dislodge  them. This article tells the story of two ways the mind's grip on reality can loosen:  hallucinogens, the classic psychedelic compounds now undergoing a remarkable  clinical renaissance, and mixed delusions, the clinically common but under discussed condition in which a person harbours two or more delusional themes at  once. Written in narrative form, the article traces what consciousness is, how drugs  such as psilocybin and LSD alter it, what delusions are and why the “mixed” subtype  matters, and where these two territories — one voluntary and temporary, one  involuntary and persistent — unexpectedly overlap.