Cup

The open, receptive, passive, feminine form.  The draught of life; immortality; plenty.  The Sacred Cup symbolism appears in many initiatory traditions.  An overturned cup depicts emptiness, hence vanity.  Celtic: The heart; life.  Christian: Christ's agony in Gethsemane. From: An Illustrated Encyclopaedia of Traditional Symbols (J.C. Cooper)

Spiritual self; full means you're centered; empty means you are neglecting your spiritual self.  Dream Dictionary - click here to read more about the Jungian symbolism of dreams.

  Songs referenced: 

Silent All These Years