Siddham was brought to Japan by the Buddhist monk Kūkai, who founded the esoteric Shingon school. It’s still used today by the Shingon school to write mantras, while it fell out of use everywhere else.
In Japanese, Siddham is called 梵字 (bonji), which is exactly what Sora is saying here.
Friday 21st November 2014 
1:33 AM 
beautiful timing; was just looking for this.
btw, Hanasaku Iroha batch almost ready? no rush really, just pure curiosity.
Not. enough. waifu. Muzukashii no ne -.-
Thanks for release though~
Thanks for the new episode!
Thanks!
Could you guys upload it to Minglong? My RSS didn’t get this ’cause is set for Minglong. How do I set it for anime-index?
Liese continues to be awesome~
Thanks
are those the official lyrics?
talking about the opening btw
Yes, we updated to official lyrics. I know, they still don’t make sense.
Thanks for the release! 😀
Just watched ep. 7 and noticed an error at 16:06.
The character used by Arata on his hand (and the characters used in this series in general) – that’s Siddham:
https://en.wikipedia.org/wiki/Siddha%E1%B9%83_alphabet
Siddham was brought to Japan by the Buddhist monk Kūkai, who founded the esoteric Shingon school. It’s still used today by the Shingon school to write mantras, while it fell out of use everywhere else.
In Japanese, Siddham is called 梵字 (bonji), which is exactly what Sora is saying here.
At the end there, are you certain about “Ish Kerioth”? It sounds an awful lot (to me) like Iscariot, as in Judas Iscariot.