To Clarify "Meditation"

I just want to clarify what I mean by "meditation". First of all, I do NOT mean simply pondering what the Bible says and thinking about the meaning of a biblical passage. What I do mean, is the repetition of any word or phrase in order to empty one's mind. Jesus says this is something we should not do.

"But when ye pray, use not vain repetitions, as the heathen do: for they think that they shall be heard for their much speaking." Matthew 6:7

I hope this maybe clears up what I mean when I say meditation. It was evident that the "drumming meditation" was the use of a repetitive sound to "tune out" or empty one's mind, so to speak. The Bible tells us not to practice this type of thing, and to my knowledge, there is nowhere in the Bible that says this is something we should try. Here is a good article about this.
http://www.onetruthministries.com/MysticsMisuseofScripture.htm