In Stargate (1994), Ra said he chose the human body because it was so easy to repair. I don't quite understand what this meant. They discovered that Ra's [alien] race was supposedly dying off. Obviously he found a way to become immortal by "becoming human". But, in the final scene, Ra morphs(?) back into the alien form.
So what was Ra, a human or an alien? How did he get his human form, did he transfer his mind/spirit into a human body or was he just seen as a human?