Dharmachakra is a very important symbol in Buddhism, and it looks like a wagon wheel with eight or more spokes. The word "dharma" in Sanskrit means "truth" or "path," and "chakra" means "wheel." So dharmachakra basically means "the wheel of truth" or "the wheel of dharma."
Now, just like a wheel has a hub and spokes, the dharmachakra has a hub and spokes too. The hub represents Buddha's teachings, which are at the center of everything in Buddhism. The spokes represent the steps or the path that one has to follow in order to reach enlightenment.
The eight spokes of the dharmachakra represent the Eightfold Path or Eightfold Noble Path, which is the path that Buddhists must follow in order to achieve enlightenment. These are right understanding, right intention, right speech, right action, right livelihood, right effort, right mindfulness, and right concentration.
But, the dharmachakra can also have more than eight spokes, and they represent different aspects or qualities of Buddha's teachings. For instance, the twelve-spoke wheel represents the Twelve Links of Dependent Origination, which explain the cycle of suffering and how to break free from it.
Overall, the dharmachakra is a very important symbol in Buddhism because it represents Buddha's teachings and the path that Buddhists must follow if they want to achieve enlightenment.