Known also as the Lord of the Waves and the Water and King of the Hosts of the Sea, the Knight of Cups represents thoughtfulness and meaningful relationships.
The Sea can be said to represent the vast Unconscious, and by its fluidity, the feeling nature. The seas and oceans of our world have variable depths, as do our emotions. In our oceans and our seas are shallows and depths, mermaids and shipwrecks.
Pleasure and terror - like the unconscious depths of our own minds, so the oceans, seas and waterways of our world represent variable depths, danger, change, and variety.
The Knights of the Tarot represent movement, and the Cups govern the domain of the heart and emotions. So when the Knight of Cups turns up for you, it means you are ready to move into a relationship, or to start relating to important people in your life in a different and meaningful, heart-felt way.
He will inspire you to move towards change and adventures, as do all Knights - his adventures are adventures of the heart. This may be in the form of a romantic individual who appears and takes your breath away with his understanding and compassionate nature. There may be proposals or propositions that are tempting because they touch your heart.
Whether such a person appears to you or not, it is time for you to contact your emotional nature, discover what it is that will give you deep emotional happiness and to fulfill your need for a loving bond. If it is not more love coming to you, then it will be something that satisfies you emotionally, so look for fulfillment in your work, in your home space, or spiritually.
At this time, it is possible you will receive intuitively a vision for your future happiness.
Image from "Hanson-Roberts Tarot" © Mary Hanson-Roberts