Thank you for these explanations - they are all 'ingested' and 'processed'! Here is a short Japanese language blog article about 'Muchimi' (ムチミ):
What Is Muchimi?
I fed this through a Universal Translator but it looks good! Probably the content is a bit basic for you - but a good Japanese language reference. I always try to seek-out a Chinese transliteration (or original ideogram) for unfamiliar concepts as this helps me understand the meaning to a greater degree. This is the fruits of my research:
a) ム (Katakana) = 牟 (mou2) - An 'Ox' Mooing! To use great strength - to exceed and to expand! As strong (and as 'heavy') as an Ox!
b) チ (Katakana) = 千 (qian2) - Thousand, many - to greatly multiply!
c) ミ (Katakana) = 三 (san1) - Three, third or repeat three times, etc.
Therefore, the Japanese concept of 'Muchimi' (ムチミ) seems to suggest that the strength (and 'weight') of the Ox is increased in all directions (including 'downward' as in 'rooting') not only a 'thousand' times, but 'three' times a thousand! As the Ox is 'Mooing' - this might suggest an emphasis upon the outward breath - or perhaps the making of a special sound (or 'Ki-ai') whilst breathing-out!
The reason this is important is that when the Japanese scholars shortened the Chinese ideogram of '牟' (mou2) and replaced it with 'ム' - they chose to retain the emphasis upon the Ox emitting the 'mooing' sound! Originally an 'Ox' was written using '牛' (niu2) with the particle '厶' added to the top - to represent its 'mooing' (or 'lowing'). There is a 'rootedness' (heaviness) and strength expanding in all directions that is effortless, natural and somehow linked to 'sound'!