"From her innate nature flows out her sophianic significance as guardian of all creation, Queen of heaven and earth. Appropriate titles include sovereign of the seas, abundant provider of grains, fragrant flower, protector of cities and realms, and guardian of the vegetable kingdom. In general there is no creature which would not be subject to the Queen of heaven and earth. In this sense- but of course only in this sense- she can be called the soul of creation, more precisely the soul of the soul: for humankind as Adam, as lord of creation, is the soul of the world, and the Mother of God is the soul of the human race. As the pardoning heart, as maternal mercy and pity, not judging but only grieving and forgiving all things, the Mother of God appears at the Last Judgment where according to the iconographic witness of the Church, she prays the King on behalf of the human race and serves as advocate for sinners before the One who came to save sinners."
Sergius Bulgakov, The Burning Bush: On the Orthodox Veneration of the Mother of God