Are the words in bold letters a participial phrase

what bolded words?

Explanation:

I can help but only if the rest of the question is there

The bolded words are:

Letting the dough rise twice is the secret to making good bread.

Explanation:

no. this is not a participial phrase

vd sg sgbdbhbsfbhjdsjfuigcyc

imparadis't in one anothers arms  

the happier eden, shall enjoy their fill  

of bliss on bliss, while i to hell am thrust,  

where neither joy nor love, but fierce desire,  

among our other torments not the least,  

still unfulfill'd with pain of longing pines;  

yet let me not forget what i have gain'd  

from their own mouths; all is not theirs it seems:  

one fatal tree there stands of knowledge call'd,  

forbidden them to taste: knowledge forbidd'n?  

suspicious, reasonless. why should their lord  

envie them that? can it be sin to know,