prisma light

Light is it a reflection or a symbol? Is it static or dynamic? Does it live or is it the reflection of movement, and is movement the reflection of life?
Why is light so important, and is the absence of it a cause for depression?
Why does life need light? Is life energy, and what is energy?
Why is shedding light a metaphor for learning?
When can some not bear light and why? What is the other sense in "unbearable lightness". Has it anything to do with bears?
Why do some prefer dark, and why do people who are in full light not understand those who are not? Is life colour?
Is colour what makes light? Do you love prisma's?