the core teaching of buddha was repentance to sin. thats becaues he was abraham and he was following after god and trying to seek enligthenment as to help save the world from destroying itself with sin.  the point of meditation and to "empty oneself" is to be purified of sin and anything that encourages it. take it to the bank. enlightenment is the state one reaches when they've completely repented and purged themself of all sinful desires and overcame their wicked ego.
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