Harmony
This card’s primary meaning for me is harmony.
Cups deal with matters of the heart and emotions. This card quite often reflects a romantic relationship, although that is not the only meaning. As with all the other cards, context is important. It can also mean a harmonious partnership between friends or business associates. It can represent an arrangement between siblings or other family members in caring for parents, grandparents or children, who may not be cared for adequately by their own parents. I have found this to represent the bond between a human and a beloved pet on more than one occasion. The important thing to keep in mind is that it deals with emotional bonds and relationships. These can take many forms.
It can also represent a unity of opposites, as with the energies of Yin and Yang in Chinese philosophy. In this case it may represent opposing forces within a single psyche, as when an individual must find peace within themselves over an issue, and is striving for inner harmony. Between two or more people, it may mean a striving for balance among opposing personality types. But it is a favorable sign that folks are willing to work together to achieve this harmony among themselves. The opposite might be found in the Five of Wands which usually represents competition among associates, sometimes a healthy competition and sometimes contentious. In the Two of Cups, this would indicate a non-competitive effort to resolve differences and find common ground.
In most cases it is a positive card, reflecting love, friendship and cooperation.