Repeating a mantra, doing transcendental meditation, is not going to help. Transcendental meditation has become very important in America because of the objective approach, because of the scientific mind. Now it is the only meditation on which scientific work can be done. It is exactly concentration and not meditation, so it is comprehensible for the scientific mind. In the universities, in the science laboratories, in psychological research work, much is being done about TM, because it is not meditation. It is concentration, a method of concentration; it falls under the same category as scientific concentration; there is a link between the two. But it has nothing to do with meditation. Meditation is so vast, so tremendously infinite, that no scientific research is possible. Only compassion will show whether the man has achieved or not. Alpha waves won’t be of much help because they are still of the mind and meditation is not of the mind — it is something beyond.