Ludwig Feuerbach,
The Essence of Christianity — Preface to the Second Edition
(1841)
“ Religion is the dream of the human mind. But even in dreams we do not find ourselves in emptiness or in heaven, but on earth, in the realm of reality; we only see real things in the entrancing splendour of imagination and caprice, instead of in the simple daylight of reality and necessity. Hence I do nothing more to religion—and to speculative philosophy and theology also—than to open its eyes, or rather to turn its gaze from the internal towards the external, i.e., I change the object as it is in the imagination into the object as it is in reality. ”
