The fool is the spirit in search of experience. He represents the cleverness bereft of reason, and has the childlike ability to tune into the inner workings of the world. He possesses an appreciation of beauty, is being chased after by the "dog of reality", and is unconcerned of stepping off a cliff into the unknown. He is the void that is always the same yet always different, a lack of hard substance and cohesiveness to the subject at hand.
The fool is the protagonist of the story, and symbolizes the flesh, the sensitive life, and presents others with truths they cannot present themselves. He is a sign of change and takes actions where the circumstances are unknown, confronting fears, challenges, and taking risks without care.
The Fool is Major Arcana, and is independent of all suits and cards, belonging to no category besides its own. It stands both at zero and between 20 and 21, which are Judgement and the World, representing a link between these two. It also can stand as the lowest or highest card, with a role always undecided.
The fool is the third son of the fairy tale, the younger figures who beat the older ones, those teetering on the edge of Nietzsche's abyss, and those who possess the horrible knowledge of how life really works and how nothing shall remain, in form or memory, but continues on all the same.