A beautiful meditation by St Basil on what Mary may have pondered:

She asked Him, “What shall I call you?
Man? But your conception was divine.
God? but you are clothed with our flesh and blood.
What shall I do for you? Shall I nurse you with my milk or glorify you?
Shall I care for you like a mother or worship you like a maidservant?
Shall I kiss you like my son or pray to you like my God?
Should I give you milk or incense?
What an ineffable mystery!
Heaven uses you as a throne and you lie in my arms!
You give yourself wholly to the inhabitants of the earth,
Yet you do not deprive Heaven of your presence.