See God is Everything:

One who sees the ultimate source of his problems increated being is like a dog whom a man hits with a brick and then the dod goes and bite the brick, not knowing that the brick has no agency on its own. Such a person and this dog is equal. One who sees the ultimate source of the favours he enjoys in created beings is like a horse who, when its trainer approaches shakes its tail in happiness. Butwhen its owner approaches, it pays him not attention. If you are intelligent, see God as the ultimate source of things, and do not see this in anything else. The lost one is not one who loses his way in the desert. The lost one is the one who is unable to findthe path to guidance. You seek honour from people, but you do not seek it from God. But one who seeks honour from people has lost his way. And one who has lost his way will only be taken farther from his desired destination the longer he travels that road. This is truly the lost one. If you say, "There is no god but Allāh", Allāh will demand of you that you live up to this and recognise its true meaning. That means that you do not attribute cause of things to anyone but God. Shaykh Ibn 'Atā'illāh al-Skandarī (d.1309) in Tāj al-'Arūs translated by Dr. Sherman Jackson in Sufismfor Non-Sufis