Tags: durer, albrecht, albrecht durer, esoteric art, symbolic art, symbolism, esoteric, esotericism, spiritual war, 1500s, romantic art, sadness, melancholy, depression, depressed, angel, strange, weird, dog, wings, magic, numbers, rainbow, sun, four humours, medieval, renaissance, medieval art, renasissance art, bile, phlegm, blood, medicine