Love in its essence is spiritual fire.
Man is an organ of life, and God alone is life.
If love is not married to wisdom (or if goodness is not married to truth), it cannot accomplish anything.
I have seen a thousand times that Angels are human form, or men, for I have conversed with them as man to man, sometimes with one alone, sometimes with many in company.
Angels never attack, as infernal spirits do. Angels only ward off and defend.
There are angels that receive more interiorly the Divine that goes forth from the Lord, and others that receive it less interiorly; the former are called celestial angels, and the latter spiritual angels