I have been told to describe the tone of the poem "Then and Now" by Oodgeroo Noonuccal. I don't understand. Please help quickly!

The tone
is nostalgic and melancholy. The speaker remembers a simpler and perhaps more peaceful time
before European colonization in Australia. The boomerang and woomera were Aboriginal weapons:
artifacts associated with this previous period in Australia's history. The speaker
affectionately recalls this time before European colonialization and...