Answer:
I carry you down a gentle stream.
I can be red blue purple and green. No one can reach me not even the queen.
I am in the past, never in the future. I don't exist, but have existed. I saw what you saw, and this is what I will ever see. What am I?
The faster you run the harder it is to catch me
What can you catch but not throw?
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.