wings of the morning

In this song and heaps of other rastafari music that I hear. I always hear them praising King Selassie? I just wondering if anyone can explain this to me. If you dont know King Selassie became emperor of Ethiopia in the 1930's I think. He did a lot of good for ethiopia's trade and for the people, but I cant understand why he is revered by the rastafari. This maybe a bit to much of a history question but I would really appreciate it if someone could clarify this for me. This is what is said in the song "I feel love his Majesty Selassie I, soul that kept me Selassie" PEACE