Read between lines

What do they say?

One says go but the other says stay

One says of course but the other says not

One says run but the other says stop

Read the signs

What do they mean?

One looks blue and the other looks green

One seems low but the other’s up high

One shows ground but the other shows sky

How do I know

What they mean or they say

When the lines say night but the signs show day?

Which one is right? I need some real proof

But ‘til then I’ll sit here and wait for the truth