Analysis of To His Mistresse

In your sterne beauty I can see
Whatere in Aetna wonders bee;
If coales out of the topp doe flye
Hott flames doe gush out of your eye;
If frost lye on the ground belowe
Your breast is white and cold as snowe:
The sparkes that sett my hart on fire
Refuse to melt your owne desire:
The frost that byndes your chilly breast
With double fire hath mee opprest:
Both heate and cold a league have made,
And leaving you they mee invade:
The hearth its proper flame withstands
When ice itselfe heates others hands.