If the translation I've read is accurate, one section of the song goes as follows:

"Let the tears of the faint-hearted flow and the servile lick the floor."

So who does Dafydd Iwan regard as the faint-hearted and the servile?

That's followed with:

"Despite the blackness around us, we are ready for the breaking of the dawn!"

What is the blackness around us? And what does the line about the breaking of the dawn signify?

Another line says:

"Despite every Dic Siôn Dafydd...."

What does the song's author mean by that?