So we arrive at the state of munen muso, the kata yaburi of our mind and we then look to the advice of otonashi ( 音無し ). As an instruction, this is telling us to ‘rest in all, the nature of everything’ or alternatively we could phrase it ‘wait and see’. This tells us that we should remain in the munen muso and sit (in our minds) and watch the risings. These will be spontaneous and easily distracting, so we have to be ultra-vigilant, remembering the instruction hidden within the kanji of the maxim otonashi which tells us to sit and watch, leaving the seeing in the seeing, the hearing in the hearing, and the risings (thoughts and emotions) in the risings.
*Quote taken from the 19th Century "The Root Text of the Seven Points of Training the Mind" by Jamgon Kongtrul; a great Tibetan teacher, credited as a founder of the Tibetan Buddhist Rime movement, and compiler of the 'Five Great Treasuries'.