You can recharge your god gauge with these rituals.
The gauge drops with every battle by 5, decreasing your defense and EXP gain (when it reaches 0 you won't get any EXP anymore)
So recharge frequently. ;)
Can you guys tell me what this choice effects? http://imgur.com/qu1AxNt
Apparently it is about giving something to somebody. The first choice doesn't do anything.
Is there a "best" choice? Has it a big impact on the story?