Going on from the Theory of Attack, you are not only dealing with the mental side but the physical side from an attacker. The mental/psychological factors of an attack may provide answers as to why an attack happens. What ever the reason, at that moment, an attacker is intent on hurting the victim, making them defenceless. So dealing with an attack thus becomes psychological, physical then reaction.
So we can break this down even more. Before we even deal with the physical side of self defence, we must first deal with the mental. Many self defence classes gloss over this important fact and go straight for the physical. But if you are not mentally prepared, you will not be ready for a physical attack.
Mental preparation is 70% the most important factor. If you are not mentally able to control your mind in an attack, you are not ready for the physical side. The more your mind is trained, you will be able to apply the physical defence.
We train you to train your mind through concentration/meditation to fully understand your true potential. Through understanding how much your mind controls you through emotion/attachment/feelings, we make you aware of how much instinctive response can affect your decision.
If your perception is poor, so will your judgement. You may not see an attack coming, you may not be alert enough to avoid an attack. You may even be distracted by an attack happening to you, your response time will be ineffective.
This poor judgement may cost you your life or your loved ones.
Now with training - the mind must control the process from an attack through to defence. We unify our mind with the body to have a 'clear vision', to deal with confusing and nasty events that will come with an attack. We must deal with an attack with a positive and determined manner.
But we must almost be detached, be objective so we remain totally unphased and in control.