Difficulties that I see and their explanations:
>Christ made Mary Magdalene his bride.
To quote dr Marshall
Yet, Saint Mary Magdalene is a “Bride of Christ” according to tradition – just as every nun is consecrated to Christ as a “Bride of Christ”. Tradition states that Saint Mary Magdalene lived as the Church’s first female hermit who had consecrated her life to the resurrected Christ, just as nuns do today. Nuns are often called “Brides of Christ” because of their vowed commitment to Christ.
>Seven forms of Holy Spirit
Reference to his seven gifts, in Isaiah actually called Spirits.
>Beloved of the Son of God
All those who are (alive) part of his Mystical Body are beloved of him. In particualr I think it's refrence to Luke 7, epsecially that there Love was mnetioned and "ergo" points to former verses.
From me, best hymn is obviously vid related. Aquinas was genius, and you can see it verses such as
Verbum caro panem verum verbo carnem effici
True beauty of latin language right there