I first heard Marianne Williamson use the term 'be the faucet not the water' at a Course in Miracles talk she gave in L.A. last year. She spoke on the potency of simply being present for those in need, wether it be a family member, a stranger on the street or a close friend.
Instead of trying to fix them, or their problems - as the faucet we simply listen, are present, and allow 'god', or 'love' to provide the healing that may be required at that time. Often being seen and heard is enough for someone to feel a positive shift in their being, or a healing on some level. And all we have do is be there for them.
Learning Reiki is a wonderful means of learning how to be the faucet and not the water. As the faucet we learn to hold space for others while allowing love, or life-force energy do the 'work'. In facilitating Reiki healing we allow the water to flow through us and so the presence of love becomes heightened. It is this presence of love that does the healing. In this way we do not use our own personal reserves of energy to heal anybody or anything, nor do we get stuck in the trap of thinking 'I healed you'.
When a Reiki practitioner shares Reiki with a client, friend, student or houseplant, theyconsciously align with Reiki and become a conduit through which universal life-force energy flows. It is the 'water' of life-force energy that acts as the healing agent.