Main Elements of Kyorugi
As you've heard already from me, invisible things are more important than visibles in Kyorugi. What are they, then? They are mind, distance, spirit, simplicity, step, balance, temperation, sight, and strategy and so on.
As there are various things that we can refer to as invisible in Kyorugi, it is also difficult to organize them in a theory, so most masters emphasized only a few of them, particularly only one or two in most cases, or they give up explaining them in words. It is why Taekwondo becomes mysterious sometimes.
I'd like to answer they are distance, tide and balance.
Since you can read the detailed philosophical and theoretical meanings of them, let me explain more practical meaning of them. (More sophisticated and systematic discussion can be see in On Samjae and Kang&Yu)
When we consider and investigate a complex situation we have to divide it into some simple units or suggest simpler model for clear investigation. In the similar manner, we can find the importance of those invisible factors in competitions of beginners as they don't have concepts of them. They make apparent mistakes.
Spirit and Motion
Spirit : Fear, aggresiveness, and temperance.
Motion : Distance, and timing, and applicance of skills to changing condition.
To explain these elements in more direct way, fear and change.
Fear and Change
Fear : Mind control and confidence, or trust on skills.
Change : Distance, and timing, and applicance of skills to changing condition.