Treasure of Knowledge 2

Excerpt:
God says: “When the angels said: ‘O Maryam! Surely Allah gives you glad tidings of a word from Him whose name is Messiah; Īsā son of Maryam'” (3:45). The wisdom of this Qur’anic verse shows that the real existence of ʿĪsā was first determined and completed in the form of a sacred and living word which is also called a spirit. This speaking word and living spirit was cast in Maryam’s ear as ism-i aʿẓam which was later embodied in human attire. Eventually in the last moments of its life, it [i.e., the speaking word and the living spirit] left the body and became as pure (mujarrad) as it was earlier.