A question regarding meditation?

Your experience is not that unusual. Many people have experienced a brightness while meditating. I have experienced it myself. You might spend some time doing a little research on chakras (burning wheels of energy in many Indian traditions). When you meditate you activate these chakras and they often will manifest themselves to you as light. It is an inner light--the inner light of wisdom. There is a chakra between your eyes called the third eye chakra. There is also a chakra at the top of your head called the crown chakra. Both of these chakras deal with the higher self--the part of you that aligns with intuition and the divine.