The angel who is sent to us from another world does not always have a significance or impact beyond the normal laws of physical nature.
Indeed it often happens that the angel precisely reveals itself in nature, in the ordinary common-sense world of causality.
The first Christian theologian to outline a specific scheme for guardian angels was Honorius of Autun in the 12th century.
He said that every soul was assigned a guardian angel the moment it was put into a body.
The nature of the angel is to be, to a degree, as its name in Hebrew signifies, a messenger, to constitute a permanent contact between our world of action and the higher worlds.
An angel's missions go in two directions: it may serve as an emissary of God downward…
Other examples in the New Testament are the angel who succoured Christ in the garden, and the angel who delivered St. In Acts -15, after Peter had been escorted out of prison by an angel, he went to the home of "Mary the mother of John, also called Mark".
The servant girl, Rhoda, recognized his voice and ran back to tell the group that Peter was there.
In Rabbinic literature, the Rabbis expressed the notion that there are indeed guardian angels appointed by God to watch over people.
Rashi on Daniel 10:7 "Our Sages of blessed memory said that although a person does not see something of which he is terrified, his guardian angel, who is in heaven, does see it; therefore, he becomes terrified." According to Rabbi Leo Trepp, in late Judaism, the belief developed that, "the people have a heavenly representative, a guardian angel. Previously the term `Malakh', angel, simply meant messenger of God." Chabad believes that people might indeed have guardian angels.