In the mystical and meditational arena, one often encounters the paradox of

They who know IT speak of IT not

and

Those who speak of IT know it not.

 

The "IT" is, depending on your tradition or language, God, Aum, Tat, Suchness, Truth.

 

The centre of this dilemma is that there are experiences that are not communicable on account of the listener not having already had the experienced described and not even having had some experience close enough to give the speaker a useful reference point.

This is why those who have known, and have tried to speak have mostly used analogy, while admitting that no analogy can really come close.

A useful hint that can be drawn from this is to hear the Master's analogy, and regard it as useful as expressed. (Of course, test it against your own experience.) Any interpolation from the analogy, any extension of the idea most likely loses the relevance, the truth, of the analogy, presented in context.