User blog comment:B214/Question and Answers 2/@comment-2216547-20140201160402/@comment-16281343-20140201170144

Ishibumi speaks highly of Shiva's strength.

And Sakra, a powerful God wants to defeat him but he cannot pick a fight against him recklessly. That speaks on to how powerful Shiva is.

~I don't think so. The myths used in DxD may resemble some aspects of the original myth but they are used in an original way by Ishibumi.

~If Ishi wants it, the reason could be a stolen cake :D