And, similar as you have read about impregnating food with a wish, so can you project an idea, or wish, into water. This idea is then dynamized by the life force, or Odic force, of water. Otherwise, you may charge water simply by holding your hands above it and visualizing Odic energy flow from your palms into the water. This process is essentially the same as conscious eating. If you consider the magnetic characteristic of water, you will also understand the many rituals of washing hands and body before religious practices.
Many religious systems have washing of the hands incorporated in their ritual.
You may include such washing in your magical practices. Before you begin with the practice, wash your hands. While washing imagine that everything that burdens you, all impurities, etc., are washed off. Better yet, take a bath with the same imaginations. We worked already with all four elements, namely fire, water, air, and earth.