Central to Zen teaching is the belief that awakening can be achieved by anyone but requires instruction in the proper forms of spiritual cultivation by a master. In modern times, Zen has been identified especially with the secular arts of medieval Japan (such as the tea ceremony, ink painting, and gardening) and with any spontaneous expression of artistic or spiritual vitality regardless of context. In popular usage, the modern non-Buddhist connotations of the word Zen have become so prominent that in many cases the term is used as a label for phenomena that lack any relationship to Zen or are even antithetical to its teachings and practices.