By meditation a person becomes aware of the unseen world, the same way he becomes aware of the apparent world. When the devotee or spiritual student enters the unseen world just as he lives his life this material world and fulfills all his life needs, so in a similar way visualizes the solar system and an infinite number of other heaves bodies. And by doing so, he is introduced to the Angels. All these realities of which the universe is created come before him. He also sees what types of light are used and are active in the creation of the universe. He discovers the source of these lights, how they are created, how they are distributed among different peoples of the universe, a how the engraving of the universe is changed by varying the quantity of light. The spiritual eye also sees that the source of light is luminescence. He also becomes aware of the tajalli, which is supporting the luminescence, which in turn sustains the lights.