No doubt the initiates they know it themselves and they know one another also. They do not need to speak in order to know another. They know one another by the meeting of their glance. They know one another by the words they have said, also they know one another by just their name mentioned. Their soul touches the other soul. It takes them no time, when the name of one initiate is taken before another. If that initiate is a true initiate, the other knows. He may not be aware of that person, but he instantly knows on the higher planes; he becomes conscious of it.