The Kings
The Kings represent the powers of the letter Yod in the Name. They are the most sublime, original, active part of the Energy of the Element; for this reason they are represented on horseback and clad in complete armour. Their action is swift and violent, but transient. In the Element of Fire, for instance, the Knight corresponds to the Lightning flash; in the Element of Water, to Rain and Springs; in that of Air, to Wind; in that of Earth, to Mountains. It is very important as a mental exercise to work out for oneself these correspondences between the Symbol and the Natural Forces which they represent; and it is essential to practical Magical work to have assimilated this knowledge. – Aleister Crowley
A King is mature and masculine. He is a doer whose focus is outward on the events of life. He demonstrates authority, control and mastery in some area associated with his suit. A King’s style is strong, assertive and direct. He is concerned with results and practical, how-to matters. – Joan Bunning