The Ring is a symbol of union, usually one that is hard to break and that was formed with the long-term in mind. While for most readers it will more than obviously point towards marriage, this is not its only nor even its main meaning. In fact, the Ring can stand for any sort of joining of forces, be it matrimonial, friendly, or even within the context of business and law. It is precisely in the latter two that its influence remains strongest and a Letter followed by a Ring is a certain confirmation of a binding contract to be signed (and fulfilled). When the Ring is positioned in front of the Heart, it is an auspicious sign and foretells a loving union, whereas if it comes after the emblem of love, it warns us of a ruptured engagement.
In a more literal context, this card can take the place of any piece of valuable jewelry but can also represent any object of a ring-like shape, be it a wheel, a DVD, or even a traffic roundabout. One of the most important roles the Ring plays is in timing. It tends to stand for an occurrence that repeats itself over and over, in regular intervals, including bad habits and addictions (again depending on the context as well as the surrounding cards).