Lit. “Presence.” This title of respect has no equivalent in English, as it is employed in a variety of acceptions. Applied to an officer of rank, it would mean “your honor”; to a clergyman, “your reverence”; to a king, “your majesty”. When applied to the names of the prophets, apostles, or saints, it expresses the sacredness of his office and character, i.e. our Saviour is called Hazratu ‘Isa, and the Virgin Mary, Hazratu Maryum. The word is much used in Persian theological works. It is seldom used in this sense in Arabic books. Hazratu ‘llah, “the presence of God”, is an Arabic term in prayer.
Based on Hughes, Dictionary of Islam