One of Budo's main purpose is to overcome one's weakness (self-governing) as well as to pave the way for the future by driving one's body/mind to an extreme situation.
武道では極限状態まで自らの身体・精神を追い込み、そこで自らの弱さに打ち勝ち(克己)自らの前途を開くことを一つの眼目としている。