Angels are to men, as a man is to a microbe. Angels are beyond our comprehension, we can understand their actions but not what they are. God is so far above angels that the difference between men and angels is only paper thin.
In modern theology they have little place, in popular piety they are more like fairies than 'the mighty warriors of the Lord'. I rather threw our school by suggesting that rather than little girls with tinsel and gossamer wings appearing in the Nativity play, angels should be boys dressed and armed as soldiers. Angels in scripture are after all always portrayed as male in scripture, even if occasionally they wear 'shining raiment'.
I do not know if it is possible to have the same belief in angels as Jesus did, or even the writers of the first century. The more I think of them, the more muddled I get, even the names of the Archangels are confusing; 'who is like unto God', 'icon of God'. Quite how to understand them gets more confusing especially when trying to understand later writers like Pseudo-Dionysius and Gregory, if you add into the mix the idea that John the Baptist is referred to as the 'Angel' of the desert, and Jesus himself is referred to as an 'angel' or at least 'messenger' in some early writings and many would suggest in the 'supplices' of the ancient Roman Canon it is Jesus that is the High Priest and Angel of the Lord who takes the sacrifice from the earthly to the heavenly altar, who else would be worthy to transport it?
Almighty God, we pray that your angel may take this sacrifice to your altar in heaven. Then, as we receive from this altar the sacred body and blood of your Son, let us be filled with every grace and blessing. [Through Christ our Lord. Amen.]I do not understand angels, just like I do not understand much in our Holy Faith but then then message of the Angels is not about comprehensible things but about incomprehensible Mystery. Our response is merely to turn to the Lord, fall down with them in adoration and worship and cry out, 'Sanctus! Sanctus! Sanctus!'