Which lines from Guthrie's song "This Land Is Your Land" were most likely inspired by this aspect of his life?

I saw above me that endless skyway:

I saw below me that golden valley:

And the wheat fields waving and the dust clouds rolling,

As the fog was lifting a voice was chanting:

As they stood there hungry, I stood there asking

Is this land made for you and me?

Nobody living can ever stop me,

As I go walking that freedom highway;

Which lines from Guthrie's song "This Land Is Your Land" were most likely inspired by this aspect of his life?

I saw above me that endless skyway:

I saw below me that golden valley:

And the wheat fields waving and the dust clouds rolling,

As the fog was lifting a voice was chanting:

As they stood there hungry, I stood there asking

Is this land made for you and me?

Nobody living can ever stop me,

As I go walking that freedom highway;

Explanation:

I don't really know, but those lines just seem like they were inspired bu the aspect of his life.