Yeah I have tried to talk to my Dad about meditation and he seems to think that meditation of Eastern thought like Buddhism is evil. However it says quiet plainly in the Bible for Christians to meditate. And it doesn't say contemplate or concentrate. It says meditate. Ma Ra Na Tha is Aramaic and it is a Christian mantra used for centuries by Christian monks. I believe it means Come Lord. I read somewhere that it is the final instruction of Revelation.

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"It is not necessary to change. Survival is not mandatory."
-W. Edwards Deming