First mental discipline

[Jade]

To me, what the quote means is that you must accept and recognize polarity as a part of this existence. I believe the mantra/idea of "There is no polarity" applied to third density is actually a hindrance to the evolution of consciousness, as per this step.

The rest of the quote is as follows:

Where you find patience within your mind you must consciously find the corresponding impatience and vice versa. Each thought that a being has, has in its turn an antithesis. The disciplines of the mind involve, first of all, identifying both those things of which you approve and those things of which you disapprove within yourself, and then balancing each and every positive and negative charge with its equal. The mind contains all things. Therefore, you must discover this completeness within yourself.

So what Ra says is that even if you only see/recognize patience, you must learn to understand/recognize that impatience exists, and internalize that, to balance the experience of third density in your being totality.

It's not that you should be able to feel impatient when you feel patient, but that you should learn there is no judgement to feel either, and that both have their place. Sometimes, impatience can be "righteous" and patience can be negligent. It's being able to view all experiences of this reality in the full spectrum.

I think of it like learning to play infinite notes (emotions) on an instrument (body complex). The more comfortable we are with each emotion, the more we are able to play each one at the behest of the Creator at the proper moment in space/time.