Anyone know who are the 'Children of the lower worlds'
"Children of the lower worlds less fortunate
From the orphanage, tear drops, coffin lids
The upper world feels your pain
120.000 years of rain for the young and the slain
Your memory last for centuries
A tribute for what you been through, may your life continue"

It says is humans, but I wonder if this is from a different book, like children of lemuria?