The Kotzk meditation is the one perhaps nearest to Zen meditation.
The point of this form is to discard external images, to get rid of empty words, and to reach a point where you are able to say exactly what you mean.
After a very long period of silent meditation, one tries to be absolutely true to the words he says.
It is a terribly tiring process.
You find that this or that is not what you mean and so you have to go further on.
And so it goes, on and on for hours until a person has a feeling that he can say something properly.
There is a very famous story about one of the great rabbis who spent his last years in Israel.
He said, “When I was young I used to pray to have the grace to say one prayer properly. Now I have come to Israel, and it is said that the air of Israel makes one wiser. I now pray to be able to say one word properly.”
–Rabbi Adin Steinsaltz
“The Private Gate” in Parabola