An idol is not the same as an image. An image may be a symbol, that is a physical representation, whether life-like or not, of non-physical being. 'Idol' is a pejorative term used by the followers of certain religions with the purpose of bringing other religions into contempt by suggesting that the images and symbols they worship are not in fact symbols but idols, that is to say, objects to which independent reality and sanctity are attributed. That implies that there can be no hard and fast rule when an object is an idol and when it is not. When independent divinity is attributed to an object it is being treated as an idol; when the same object is used as a support to concentrate the devotion of the worshipper and canalise the grace of God, it is a symbol. Therefore to use the term 'idol' indiscriminately is tendentious.
However, the term 'idol' has come to be used in a wider connotation and need not necessarily imply an image or symbol; it can also mean a cause or idea. It is natural for man to give his allegiance to pure Being or a symbol of Being. When he ceases to do so he can either live for mere pleasure and convenience, like an animal, or switch his allegiance to some substitute, and this is idolatry, whether the substitute is in the form of an image or not.
The lowest kind of idolatry is the worship of some other human being, some Hitler or Stalin or Mao Tse Tung, because worship of the human degrades one to the subhuman level. This does not apply, of course, to a disciple's worship of his Guru, because it is not the human but the superhuman that he is worshipping in the Guru; he is not worshipping him as a man but as a manifestation of the Divine.
