1) Tibetan Buddhist practice 
The Gankyil (དགའ་འཁྱིལ་) or `wheel of joy` is a symbol and ritual tool used in Tibetan Buddhism and east-Asian Buddhism. It is composed of three swirling and interconnected blades. The Tibetan term dga` is used to describe all forms of joy, delight, and pleasure, and the term `khyil means to circle or spin. It is symbolic o...