The lens

I was chatting recently to a young and enthusiastic lay Buddhist about everything being illusion, savouring the memory of how sure I felt about this myself once, and wishing I could pass on the only thing I feel sure of these days: namely how irrelevant all theories are in a world that only rewards action.
Illusion is itself illusion, but the lenses we peer through are real enough, and so one should at least try to get the prescription right.