"I may cheer you up by saying that, although the path of preparatory discipleship is long and there are many obstacles and trials on this path, the mastering of these difficulties bring its own joy, achievement and revelation. Also, you must know that these tests are not artificially created but deal with the inner attitude and presence of mind of the disciple, giving him a chance to show how he will act in cases of sudden difficulty and amid general trying circumstances. In Theosophical literature seven years is usually mentioned as the first period of trial, followed by the next period of seven years. But these periods can be shortened or prolonged indefinitely. All depends upon the karma of the disciple and on his inner development and aspiration. For one must achieve the gradual opening of the higher centers; otherwise it is impossible to become an accepted disciple. But remember that until the age of thirty years is reached, not all the centers can be awakened without terrible harm to the organism. To force their opening is equal to suicide."