I remember I was listening to some dense academic lecture on the fool archetype from the perspective of psychoanalysis, history, tarot, and probably something else. This was a lecture for artistic people and poetry-writing guys in particular.
Yeah, it's important to recall it; a fool is far from necessarily a negative character, especially when the role is used consciously. In the role of a fool, it may be the safest to say some dangerous truths in the face of authorities, for example.