Hello Brothers and sisters this blog is about our Guardian Angels. First of all ill explain exacly what Angels are. Angels of God are Pure Spirits. They have no sin and they live in Heaven and serve God all day. There always in the presence of God. Now a Guardian Angel is an Angel assigned to a human at birth. The Guardian Angel protects you guilds you and prays for you all day. While protecting you your Guardian Angel is,at the same time,Glorifying God in heaven. This is a mystery. How can Angels be at two places at the same time? Well they are spirits,and any thing is possible with God.
Padre Pio is said to have talked to every one's Guardian Angel to get info,for example if somebody couldn't get to Padre Pio he would send his Guardian Angel to him with a message. 
     
    In Psalms 91:11-12 it says "For God commands his angels to guard you in all your ways. with there hands they will support you lest you strike your foot against a stone." and in Acts 12:15 after St.Peter was imprisoned an Angel helped him escape and then he came back to the house where the Christians met. then he knocked on there door and a woman saw that it was peter. "'Your out of your mind' they told her,and when she kept insisting they said 'it must be his Angel'"
It sounds like its saying that peter died and went to Heaven and came back an Angel. But Humans don't become Angels they become Holy People or Saints in Heaven. And the Early Christians believed this. 

   In Matthew 18:10 Jesus talks about kids having an angel. "See that you do not despise one of these little ones. For i tell you the Angels of these little ones always see the face of my Father in Heaven." Again they believed in the Communion of Saints. 

I hope i provided enough info. lets say the Guardian Angel prayer together. 
Angel of God my Guardian dear,to whom God's love comits me here,ever this day be at my side,to light a guard,rule and guild Amen.
God bless you.