Turning the Wheel

The eight-spoked wheel (dharmachakra) is the oldest and most pan-Buddhist emblem, predating the widespread depiction of the Buddha in human form. It represents the Buddha's first sermon in the Deer Park near Varanasi, the discourse called the setting in motion of the wheel of Dhamma, in which he taught the Four Noble Truths to his first five disciples. The eight spokes are conventionally read as the Noble Eightfold Path, the hub as moral discipline, the rim as the concentration that binds practice together. The image draws on the older Indian notion of the chakravartin, the wheel-turning universal monarch whose wheel rolls unopposed across the world, the Buddha reframed as a spiritual rather than a temporal sovereign.

The Deer Park sermon the wheel commemorates is traditionally called the Dhammacakkappavattana Sutta, and its content, the Four Noble Truths and the Middle Way, is treated across nearly all Buddhist schools as the tradition's founding statement, part of why the wheel long preceded and then coexisted with figural Buddha images once these appeared from around the first century in Gandharan and Mathuran art. The chakravartin concept the wheel evokes has a documented political afterlife: Ashoka's own inscriptions present his rule blending the universal-monarch ideal with explicit Buddhist patronage, and the wheel's double reference, to a world-conquering king and a world-renouncing teacher, let Buddhist art use one emblem to speak to royal legitimacy and spiritual authority at once.