For you to start a Reiki exercise, you must activate the energy within you. Close your eyes and take a deep breath. Imagine the crown of your head opening and a stream of healing white light flowing from the top of your head into your heart and through your arms and hands. Reiki can be easily learned by anyone interested and practiced as self-care, regardless of the person's age or health status. Children can learn to practice, just like frail older people. No special background or credentials are required for the training.