The Six of Cups is the card of past, nostalgia and reunions. It is considered as one of the 'karmic' cards in Tarot, as some say it can show connections from past lives. The Lovers is the card of love, love triangles and choices. It's about acknowledging who/what will complete us and about making (or not) the choice to pursue the object of our desire.The combination of the Six of Cups and the Lovers is about enjoying positive energies and/or a strong connection with another.
To understand the elemental relationships between the cards, we should always take into account their actual meaning. The elements of the cards are Water (Six of Cups) and Air (Lovers). This is a favorable combination when our goal is to find a balance between feelings and logic, between what we want to do and what we have to do. In this case, emotions and logic are in perfect balance.