Answer:
I am seen in the water. If seen in the sky I am in the rainbow a jay's feather and lapis lazuli.
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
I hold two meanings. With one I may be broken with the other I hold on.
I am often sold by children entrepreneurs in summer time
I am so delicious that I require a house to contain me.
What is always coming but never arrives?