Colour Me Zen Each Colour Me Zen book focuses on an area of spirituality and symbolism, and captures its very essence in colourable form. Accompanied by inspirational quotes, find relaxation and inner peace within every page. Colour Me Zen: Celtic Designs explores Celtic symbology and patterns, with twenty one relaxing and unique designs to colour. Interwoven throughout are inspirational Celtic proverbs embodying wisdom developed over thousands of years of Celtic history.