The patch has alot of meaning . We'll start at the bottom of the patch with the two kanji's 
Honto - no hono - which stands for natural instinct . We all have it now we need to work it . 
The left side kanji
Yokken suru - means forsee /  foreknow   .This means our third eye , our intuition again in close contact to our instinct within 
The right side kanji
Bichu - Stands for ,  true heart   /   true spirit 
something we should all have in and outside the dojo
The top kani 
Saiki -  which means   wisdom  , something we all hope to attain . 
 
		
		
		            The center is the crow , which is there for the mystery and myth of the lore of the tengu . In it's center is the kanji for Sansai - which means heaven , man , earth .  To me this is another grounding thought , we are but nothing in this great universe . 
 
		
		
		Training must be more than just technique . 
We train our senses through the use of blindfold training . 
We train with no set order of punch or kick , first learn the taijutsu and taisabaki along with kihon happo .
Then react 
Mushin the kanji to the right means , no mind  / no thought
just react instinctively to an attack