An absolute favourite of mine, the pink crystals are all about love, the heart and connecting to love from the divine. They often connect us to the divine mothers such as Mother Mary, Quan Yin and Mother earth. The pink ray is the ray of compassion that teaches us that we are loved, held and we are love as we receive from the divine. It is often associated with the heart chakra and higher (divine) heart.
Those interested in metaphysics will often work with these energetically a pink healing ray of light. Of course, crystals of the pink ray have many other properties well above and beyond what we are describing here.