The following is an exerpt from Sangharakshita “Vision and Transformation” where he expounds on The Buddha’s Noble Eightfold Path. This is his explanation of the first of the eight steps on the path. I found it interesting because here he communicates it through a series of images rather than concepts.

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So what is this Perfect Vision? One may say it is a vision of the nature ofexistence, but what does this vision reveal? What is the nature of existence? This question is difficult to answer because it is easy – only too easy – to answer. This is not to be paradoxical. What it means is that only too many concepts lie ready to hand. There is so much Buddhist philosophy available. One can so easily use a few technical terms, refer to this system or that, and say this is the nature of existence according to Buddhism. But this is too slick, too easy. We must beware of the temptation to produce our concepts too readily. What one is trying to communicate is not simply a set of ideas, not a system of philosophy in the academic sense, but what the Buddha himself, in his own language, quite unambiguously called drsti – a vision.

There are two principal ways a vision can be communicated – through images and through concepts. In Buddhism there are three main images of the nature of existence. These are the Wheel of Life, the Buddha, and the Path. Since these images communicate a vision, it is helpful, in absorbing that communication, if we can ‘get the picture’, instead of just ‘thinking’ them in an abstract manner and assuming they have been understood.

The Wheel of Life
The Wheel of Life comprises four concentric circles. Within the central circle,
which forms the hub of the wheel, are three animals, a cock, a snake, and a pig, each biting the tail of the animal in front. These animals represent the three poisons of greed, hatred, and delusion which control our minds and make the whole wheel of mundane existence revolve. Outside the hub is a second circle, divided into two equal segments, one black and one white. The white half represents the good or ethical path leading upwards, to states of happiness. The black half represents the bad or unethical path leading downwards, to states of misery. The third circle is divided into six segments representing the different ‘worlds’ or spheres of existence within which, according to Buddhism, sentient beings are continuously reborn. These six worlds are those of the gods, titans, hungry ghosts, hell beings, animals, and humans. The outermost circle of the wheel, which forms the rim, is divided into twelve segments. These are the twelve nidanas, or links in the process which is called Dependent Origination, or Conditioned Co-production. These show in detail the whole process of birth, life, death, and rebirth.

This is the first great image, the first great symbol. This is what we begin to see when we have a vision of the nature of existence. We see the whole of mundane conditioned existence going round like a great wheel – a Wheel of Life, a Wheel of Death – with ourselves as well as all other sentient beings caught up in it. We see that the Wheel of Life in fact is us, is sentient,
conditioned existence.

The Buddha
The Buddha is usually depicted seated on a lotus flower or beneath the Bodhi tree, the ‘Tree of Enlightenment’, with its great spreading branches and its canopy of beautiful heart-shaped leaves, his body radiating light of various colours. There are also more elaborate versions of this image. One of the best known is the mandala of the Five Buddhas, which comes from the more esoteric teaching. In the centre of this mandala is the White Buddha, with theDark Blue Buddha to the east, the Yellow Buddha to the south, the Red Buddhato the west, and the Green Buddha to the north. There are even more elaborate versions of the image in the form of a ‘Pure Land’, or ‘Happy Land’ – Sukhavati – with its presiding Buddha flanked by his attendant Bodhisattvas, its rows of wonderful jewel-trees, its magical singing birds, and many other marvels.

The Path
The path of spiritual progress – or spiral path – connects the two images we have already described, that is to say it leads up from the Wheel of Life to the Buddha, or to the mandala of the Five Buddhas. These then are the three great images through which Buddhism communicates its vision of existence. Perfect Vision is a vision, first of all, of our actual present state of bondage to conditioned existence as represented by the Wheel of Life. It is also a vision of our potential future state of Enlightenment as represented by the Buddha, or the mandala of Buddhas, or a Pure Land. Finally it is a vision of the path or way leading from the one to the other – a vision, if you like, of the whole future course of evolution.