I learned a slightly different translation to Calon Lan:

Do not give me golden money Or the stones from diamond mines For I want a heart that's happy Honest heart, a heart that shines

Chorus Shining heart is full of goodness Purer than the lily's white Shining heart is always singing All the day and all the night

Jewels glitter for a moment Then are lost in endless night But the pure and perfect heart Shines with a warm eternal light

Chorus

I don't have a third verse.

Sorry I can't help you with the other song.

Emily