The Black: Life is suffering, masked by joy. The goal is
the Void -- to transcend this inherent suffering by escaping from worldly
entanglements.
Example: Early buddhism.
The White: Life is joy, masked by suffering. The goal is happiness
-- to see underneath the superficial veil of suffering, and find peace
in the world.
Example: Early christianity.
The Yellow: Life is. There is no goal.
Example: Taoism.
Most life philosophies can be reduced to some combination of these
three. Please note that the colors are in no way related to race or moral
evaluation. (ie "Black" is in no way connected to "evil"
or "the dark side", and neither does it refer to people of african
descent.) Sometimes I just number them to avoid this kind of misinterpretation.
But the color names are nice.
My own approach is mostly White, with a touch of Yellow. I don't think
that there is an ultimate reality; I only see an endless series of
layers, joy under suffering under joy under suffering. But I like to focus
on the joy.