When your hands get dirty, you wash them.
Soap and water cleanliness is a familiar concept. Periodically, we clean ourselves and the spaces we inhabit. This is a healthy practice. Additionally, when we get dirty outside of the routine cleanings (like after gardening) we will probably wash our hands.
These same principles can be applied to your energetic health. Periodically, we need to clean out old thoughts, emotions, muscle tension, etc. so that we can start from a clean slate.
Reiki is a method to achieve energetic hygiene.
Do you feel your slate is clean? Wash it–with Reiki.