If a person studies in the proper manner, he crosses the barrier between this world and the spiritual world. He enters a place of inner revelation and reaches the light. That is known as the beautiful sign. If he does not achieve this, it is a sign that he has been negligent in the quality or quantity of his efforts; he did not make a sufficient effort. It is not a question of how much he studied, but a question of how focused he was on his intentions, or if he lacked something. However, if he reaches this desire to correct himself, he can attain spirituality. Only then will the heavens open for him to allow his entry into another world, another reality, another dimension. He reaches this stage by studying Kabbalah in the right way.
Courtesy of http://www.youtube.com/watch?v=uQI5Tv2sC9w