They could all be address at length on their own. All fighting involves understanding timing, controlling distance, applying technique, and utilizing perception. These familiar elements, defined in various ways, have been identified and stressed by masters in countless martial arts. They are fairly self-evident ideas and serve only to coherently direct how we think about actions. They are concepts that should not be ignored.
None is really more vital than any other and no one alone ensures victory.
It is by comprehension of their mutual relation and interaction that they can then benefit a fighter. It is when these principles and concepts are openly violated that a fighter falls into bad habits and becomes vulnerable to an opponent who better understands and applies them. These principles cannot really be taught but must be learned by each individual and developed through practice and experience. When we can control distance we know where we can strike and where we can not strike, and where the adversary can and cannot strike. When we can apply learned technique with proficiency we can fluidly attack and defend with both speed and intensity.