These people are receptive to impression from the Masters and from each other; they are the custodians of group purpose and, therefore, closely related to all the other types of groups. Their work is largely on the mental plane and they work in and with thought matter and with the reception and direction of thought currents. They are also working at the facilitation of communication between individuals so that the rules and methods whereby speech can be transcended may become known and the new way of intercourse be brought about. (Discipleship I, p.35-40)
Resources for Seed-Group 1, Telepathic communicators
Ten Seed-Group Directory: Telepathy and Communication
Booklets on the 10 Seed Groups