My sanctum sanctorum.

It's my sanctum sanctorum.

This is my sanctum sanctorum.

However... each dimension has a gateway, one that leads only to this place: the sanctum sanctorum.

Gaudeamus omnes in Domino, diem festum celebrantes sub honore sanctorum omnium...

Are all the recruits invited up to the sanctum sanctorum or just James?

So this is it, huh? This is the... the Galweather Stearn sanctum sanctorum, huh?

You have to go through two more sanctums to get to the sanctorum.

So, uh, this is your old place? 221B is my original sanctum sanctorum.