this is an Englyn but with a reversed Englyn added, the second part confirms and accentuates the first part and keeps the rhyme in line....
From the Heavens
Eternal sun shone so bright we’ll caress
Turning darkness into light
And, sadness into delight
Cherishing a golden smile
Making living more worthwhile
As time goes by, once in a while, we’ll sing.
Diminishing Ascending Englyn