Answer:
I save lives on the ground and in the air
I am a mountain at night meadow at day
I am in truth a yellow fork from tables in the sky by inadvertent fingers dropped the awful cutlery. Of mansions never quite disclosed and never quite concealed the apparatus of the dark to ignorance revealed.
I am a seed with three letters in my name. Take away the last two and I still sound the same. What am I?
I carry you down a gentle stream.
A little house full of meat, no door to go in and eat.