Nominating J. Krishnamurti for a Great Dude in History.
What is important is the state of full attention in which there is no border, no frontier, no limit. When there is that attention which is not induced in any way, then you will see that it is the limitless. But it cannot be captured by the mind, nor can the path of time lead you to it. Seeing all this - and there is much more to it- seeing ...
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Namaste.