Radiant 
To dream of radiance emanating is a fortunate omen as it indicates a spiritual opening of some kind is happening in your psyche. Note the radiance; is it from a being, an object, or from yourself?
A dream of obvious radiance which becomes continuously brighter symbolizes the endless opportunities that new higher awareness may bring.
Light
To dream of light signifies clarity of mind, discernment, and insight. Light suggests that you now have an obvious solution to a problem or a situation that has been bothering you.
To see bright light in your dream means that you need to improve and move up to a higher level of emotional and psychological awareness. Bright light in dreams commonly happen to persons near death or those that have near death experiences.
Bright
To dream about something bright signifies godliness, mysticism, or a higher plane of thought. You must pay heed to a person or circumstance that is commendable. This dream may also represent a wise person.
If the brightness is overwhelming, you need to pay closer attention to some new information or guidance.
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