Wandering Souls are players who have not yet been accepted into Lord of the Craft mainstream gameplay. Anyone who logs on to Lord of the Craft who has not yet been whitelisted will be a Wandering Soul. Wandering Souls can fly, and use this to observe the landscape of the server. Accepted members cannot see Wandering Souls. To become an accepted member a Wandering Soul can apply for acceptance to the server on the forums. 
The Wandering Soul Chat is the only chat that Wandering Souls can see or talk in. Accepted members can enter the Wandering Souls chat to help Souls by doing with /chat join ws. Abuse of the channel is bannable.