Answer:
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
Though I am only two words I have thousands of letters in me
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves everyday
Of the king I am blue and of the peasant I am red. Of the frog I am cold and of the dog I am hot instead.
I am good at concealing what's real and hide what's true. Sometimes I bring out the courage in you!
What is always coming but never arrives?