Wheel turner
The Eight-Spoked Dharma Wheel or 'Dharmachakra' (Sanskrit) symbolises the Buddha's turning the Wheel of Truth or Law (dharma = truth/law, chakra = wheel).
It refers to the story that shortly after the Buddha achieved enlightenment, Brahma came down from heaven and requested the Buddha to teach by offering him a Dharmachakra. The Buddha is known as the Wheel-Turner: he who sets a new cycle of teachings in motion and in consequence changes the course of destiny.
The Dharmachakra has eight spokes, symbolising the Eight-fold Noble Path. The 3 swirling segments in centre represent the Buddha, Dharma (the teachings) and Sangha (the spiritual community). The wheel can also be divided into three parts, each representing an aspect of Buddhist practice; the hub (discipline), the spokes (wisdom), and the rim (concentration).
