If this says 'SEALING RINOA', it will prove how dedicated the Esthar corporation really is. They find out that Rinoa is a witch, they start preparing everything (the equipment, etc) to be ready for Rinoa whenever they get her. It also proves that they are willing to seal Rinoa for many generations ... Putting her name on the wall costs money, you know.
But if this says 'SEALING ADEL', was Adel MEANT to be sealed in this place, not in the space? Another thing Square changed mind during the development? Or was Adel actually sealed in this place and Esthar moved her to the Space to be safer.
What do you think?