I'm not a fan of the heal over time skills in this game. The two in the Dragon Clan tree don't stack with each other or with themselves and I've also heard that the amount they heal for isn't effected by how much Soul you have (haven't actually tested this though).
Kami's Light doesn't stack with Kami's Energy so it's pretty pointless to put any more than 1 skill point into that.
I don't like 6 points in Kami's Blessing at all. 5 points for an extra 300 LP just doesn't seem worth it. The same with 1 point for 25 LP in Increase LP.
For Kami's Revival I think if you really need that 4 minute cooldown reduction you must be doing something wrong. I just see that as a skill you use in emergency situations.