Guardian Angel

The Bible mentions angels who protect God's covenant people. The LORD sent an angel to lead Israel into the promise land. Fear in the people was caused by hearing the report of unbelieving men. If they had have believed God they would have entered the promise land on their journey from Egypt. Unbelief caused them to wander in the wilderness for forty years until the unbelieving generation had died out.

Exo 23:20  “Behold, I send an angel before you to guard you on the way and to bring you to the place that I have prepared. 

Exo 23:21  Pay careful attention to him and obey his voice; do not rebel against him, for he will not pardon your transgression, for my name is in him. 

Exo 23:22  “But if you carefully obey his voice and do all that I say, then I will be an enemy to your enemies and an adversary to your adversaries. 

Angels are sent to minister to the people of the New Covenant as well. the Messiah Jesus is not an angel.

Heb 1:13  And to which of the angels has he ever said, “Sit at my right hand until I make your enemies a footstool for your feet”? 

Heb 1:14  Are they not all ministering spirits sent out to serve for the sake of those who are to inherit salvation? 

Perhaps a guardian angel has protected you at one time.  A word of caution. Do not pray to angels nor invite them into your heart. The devil has fallen angels , demons.  Be careful about empty meditations, you may attract a demonic angel. Trust in Jesus.