Hall of Rituals

This sigil/module is a framework for creating a "floating fortress" to perform ritual magic and study in. I made one for interdimensional and other planetary visitors. It's something in between an island and a ship/station. Mine is a private club/cult so it's unlikely most will be allowed entry. If you're interested in this idea, create your own version of it.

Mine has a large ritual circle for multi-purpose use engraved in the floor, which takes up most of the space. Around the walls are study stations with tables, chairs, wall mounted sofas and other equipment. There's also places to sleep or eat if someone wants. The fortress has a multi-layered shield (atmospheric and force) and emits a pacifying ray in its surroundings.