The soul is an immense thing; it is the whole cosmos, since it is the copy of it. Everything which is in the cosmos is to be found in the soul; equally everything in the soul is in the cosmos. Because of this fact, he who masters his soul most certainly masters the cosmos, just as he who is dominated by his soul is certainly dominated by the whole cosmos.
— Shaykh al-'Arabi al-Darqawi , Sufi Essays by Seyyed Hossein Nasr