The Rose Cross, as an esoteric organization, attempts to guard the ancient knowledge by prohibiting its dissemination outside the Order. They hope by means of this cautious attitude to discourage the merely curious, and concentrate on the genuine, earnest seeker, because the knowledge is powerful, and can be dangerous if used carelessly.
This is not to say that those who have studied and acquired some knowledge of the true nature of the universe ought to keep this knowledge locked away in their heads and gloat! Knowledge on its own is no better than ignorance. Knowledge plus application gives wisdom. The only point of having such knowledge is to use it lovingly in the service of others.
In this way, it is possible to heal by demonstrating to others the powers they already possess.