Light brings clarity. When the light is on, you see things more clearly. Illumination is synonymous to “revelation” and “insight”. Where there’s light, there’s an understanding. In psychology, creative thinking has four stages and illumination is one of the stages and defined as the period where “the obscure becomes clear”.
Don't wait for someone to make you happy, we already have joy inside of us. Everything you need is inside of you. All we have to do is create it, bring it out of us and walk in it - live in it, be it.