What if someone killed me and i came back down to earth?

So im 9 But this is one weird thing happened. i lived cranston and i was riding my bike and all a sudden my back of my bike went flying in the air about 2 to 3 feet and i saw somthing past me And it was so blury but it looked like an Angel And i past out Because i had a scrape all across my face i was probrably sdead for like 2 Hours because when i past out i had a dream like i was climbing stairway to heaven