The area around the Palbox becomes the territory of your guild's base, and any structure built inside it belong to your guild. Clearing Base Missions obtained by interacting with…

The area around the Palbox becomes the territory of your guild's base, and any structure built inside it belong to your guild.
Clearing Base Missions obtained by interacting with the Palbox will grow the guild's base and increase the number of Pals you can summon in the base.
If you keep Pals in the Palbox, they will rest and recover. They will continue to recover even if they're incapacitated.
The Palbox has a fast travel function, which can be used to warp to the Great Eagle Statues you've unlocked during your adventures. (Fast travel cannot be used if it's disabled in the world settings.)