do guardian angels exist

I am thinking of what the poet said in that song..zindagi kaisi hai paheli hai..and then rekha crooned the same thing in kaisi paheli zindagani..true..life confounds you..all the time..
Just when you have given up..someone from somewhere will come and lift you up..someone unconnected..someone who doesnt know you or what you are going through..
It happens all the time...and i guess thats what they mean by guardian angels

What are guardian angels really? I have a hypothesis. Guardian angels are people who come into your life to rescue you from yourself..and to qualify they have to not know you or your situation. They are just themselves and they bring you exactly what the doctor ordered. I've met so many in my life. So many strangers who later became good friends..who hauled me up from the depths..and didnt even know it..who helped me resolve my deepest fears..just by being themselves..
So watch out for answers to your prayers..they come in all forms, shapes and sizes..