I was truly astonished by a story recounted to me by a man in his mid sixties.  He recalls that during his teenage years, he escaped a brush with death due to the help of a 12 year old girl. 

As it was, he was swimming on a curve in an area where wind was firece and waves were high.  Out of the blue, a windsurfer came flying toward him and the fin of the board scalped his head, leaving him face down in the water and in a terribly weak state.  He's unsure whether the windsurfer himself was oblivious, or had no conscience. He didn't stop or apparently even look back.  On that particular day, the area was essentially void of people. Yet, a twelve year old girl appeared and turned him over before asking her parents nearby to call an ambulance. This is why the scalped man with a scar on his head believes he's alive today to tell his tale. When the paramedics came, the windsurfer was nowhere in sight. He had disappeared, along with the girl.

In this man's mind, angels may appear to us on our own level, as humans, and influence our fate based on quick thinking. Angels may also represent a plausible explanation when no other one will satisfy.  When a mystery bewilders us, the mind still often seeks logical answers.  Yet, a sense of knowing perhaps it wasn't your time to go allows you to believe in the immeasurable.  Once such a rescue is experienced, views of sceptics and their theories will not weaken one's convictions.