(Al Rabb). The Lord. Allah is the Lord of all existent things and all things are His vassals). The Lord of any vassal is the Face of Allah turned towards it. Each thing's Lord is the specific Self-disclosure which Allah gives to it, and all of this depends upon the preparedness of the fixed entity itself. However, within the higher teaching the Name al rabb implies its opposite, which is the slave. The Holy Prophet Muhammad (May the Salutations of Allah be upon him and Peace) said "He who knows his own self, truly, does know his Lord", and he also said, "I understood my Lord by my Lord".