i was rereading the chapter with the fight between jiraiya and Pain and came up with several questios

1. who is Pain?

2. why were all Pain's bodies people jiraiya had met?

3. Whats the 6 paths of Pain

4. Is Pain a person or an entity, remember when nagato killed the guy who attacked him and yahiko with his rinnegan he said he blacked out during the fight , thats the same thing naruto goes through when he is in 4 tail kyuubi mode. That means that he didnt have control of his rinnegan and something might have been controling him.