Final answer:
The song treats both the voice from above (thunder) and the voice from below (grasshopper) as important, each adding to the land's beauty through their respective sounds.
Step-by-step explanation:
Based on the repetition in the song, it is not clear that the voice from above is more important than the voice from below to the Navajo people. Both the voice of the thunder (above) and the voice of the grasshopper (below) are celebrated and repeatedly referred to as voices that beautify the land. This suggests that they are seen as equally important, each contributing uniquely to the beauty of the land.