In heaven an angel is nobody in particular.
Every man hath a good and a bad angel attending on him in particular all his life long.
The angels taken collectively are called heaven, for they constitute heaven; and yet that which makes heaven in general and in particular is the Divine that goes forth from the Lord and flows into the angels and is received by them.
Angels are like diamonds. They can't be made, you have to find them. Each one is unique.
Men acquire a particular quality by constantly acting in a particular way.
El bien común supera al bien particular
Santo Tomás De Aquino