Just another take on this. I have been studying Chaldean numerology and I can relate to the Fool card very well, as it is my day of birth. Although it is numbered 22.
Submission-and Caution
22 is symbolised by the ancients as "A Good Man, blinded by the folly of others, with a knapsack on his back, full or errors" It's a warning No of illusion and delusion. It indicates a Good Man/woman who lives in a fools paradise; dreamer of dreams who awakens only when surrounded by danger, when it's often too late. it warns of mistakes in judgment, of placing faith in those who are not trustworthy. The person who it represents should exercise caution and watchfulness in both career and personal matters. The karmic obligation here is to be more alert, to curb "spirityal laziness," and develop more spiritual agrgressiveness - to realize your own power to change things, to prevent failure by simply ordaining success. When this personal responsibility is recognized, practiced, and finally mastered, the 22(Fool) can be in control of events, no longer blinded by the folly of others, and will see ideas achieved and dreams realized.
I can say this has been very accurate as far as my life is concerned, and it hit me like a lightning bolt, because i put my trust in untrustworthy people and always got hurt, but now I know and it has made me more alert!hehe