This bright golden light would appear to certain people and instruct them to
kill evil people in the town. Sam believed it was an angel and Dean thought it
was something perhaps evil. It turned out to be the spirit of a murdered priest, who was misguided in his attempt to do good. At the end of the show
it made you kind of believe in angels.

yah that was a good episode kinda confusing though i got confused a little but it was still really good allthe episodes are really good