Imam al-Rida (AS) said, ‘He is subtle not in terms of lack or delicateness or smallness, rather [He is subtle] in His penetration into everything without being perceived. He is all-aware through the fact that nothing escapes His attention or evades Him, independent of experience or consideration of things, for experience and consideration in turn result in two types of knowledge, without which He would not know [if he were to be dependent on them], and would therefore be ignorant.