How does one know whether the weakness is in the art being studied or just in one's self?
I heard that the Thai Buddhist teacher Ajaan Chah used to tell the story of the monk who dropped his bag in a pile of shit one day. The monk soon left the temple and went to another temple. Then he left that temple and went to another still carrying the bag. Finally he ended up in the first temple again. The head monk asked him why he moved around so much. The monk answered, "Because every temple I go to, stinks so bad."