how could one explain

How far is the moon?      
Its just outside the door        
How long is the night?      
The same as the one before      
        
Why is the earth a magnet,      
And no one knows quite why?        
How can the eagle soar,      
Yet never learn to fly?      
       
How can the lines sum up      
The face of Earth’s rotation,      
Displaying isogonic lines,      
Yet have a variant declination?      
       
How does the concave mirror      
Incept the candle’s radiation?      
It’s because the small is significant,      
It’s because of concentration      
       
How could one explain,      
How low the chariots go,      
Or how many times they swing us,      
Until Jordan calls us home