The King of Cups is the worldly and calm projection of authority. To find him in your spread is most likely a reference to someone else who will aid you in achieving your goals. This person may seem unconcerned, even distant, but their motivations are pure. Whatever advice they give will be important to you and should be considered in your own deliberations. If it does refer to you personally, it shows an inner strength and tightly disciplined control of emotions.
To get the full traditional meaning and interpreation of King Of Cups, I suggest you visit Trusted Tarot and their King Of Cups page.
