It is widely supposed that the naked human body is in itself an object upon which the eye dwells with pleasure and which we are glad to see depicted.… - Kenneth Clark

In the early twelfth century century the Virgin had been the supreme protectress of civilisation. She had taught a race of tough and ruthless barbarians the virtues of tenderness and compassion. The great cathedrals of the Middle Ages were her dwelling places upon earth. In the Renaissance, while remaining the Queen of Heaven, she became also the human mother in whom everyone could recognise qualities of warmth and love and approachability...
The stabilising, comprehensive religions of the world, the religions which penetrate to every part of a man's being — in Egypt, India or China — gave the female principle of creation at least as much importance as the male, and wouldn't have taken seriously a philosophy that failed to include them both...It's a curious fact that the
all-male religions have produced no religious imagery — in most cases have positively forbidden it. The great religious art of the world is deeply involved with the female principle.

For the student of visionary art the interesting fact is that an image comes first and takes up residence in the mind long before the artist has any notion why it is there or what it means. Whether visions come from some great reservoir of symbolic images which are eternally there (and if one examines the recurrence of images in history this proposition is not quite as crazy as it sounds) or whether they are due to buried memories, their obsessive power over an artist's mind, and their clear, compulsive emergence in his work depends on a mental condition that can come and go. When, for some reason, they no longer present themselves to the mind's eye, alive or clamoring to be born, the visionary artist has a hard time — dark days. This is particularly true if he has lost the habit of feeding his mind on the observation of nature.

Almost all great painters in old age arrive at the same kind of broad, simplified style, as if they wanted to summarise the whole of their experience in a few strokes and blobs of colour.