Of course, pictures of objects also have this transcendental side to them. Every object, being part of an ultimately incomprehensible world, also embodies that world; when represented in a picture, the object conveys this mystery all the more powerfully, the less of a 'function' the picture has. Hence, for instance, the growing fascination of many beautiful old portraits.

Gerhard Richter: text : writings, interviews and letters, 1961-2007 (ed. 2009)