Many people dream about a cup. In many cultures, it is thought to signify wanting a drink of rejuvenation and refreshment. If you have ever had a dream of a cup, it might be a sign that you are feeling tired or stressed.
Also, drinking from a cup in a dream could signify instant gratification, a person must be experiencing feelings of low self-esteem and he or she is having negative experiences, then chooses to down a cup of alcohol in order to numb themselves, meaning the person is gravitating towards short term outcomes.
When someone enters into a dream where they are holding a cup, the cup can be seen as representing an opportunity to shake up their lives and make things easier with how they were being treated. Should you choose to accept the cup, then the opportunity is yours to participate in.