How does the writer use nature to present symbols.

The speaker uses nature in ITOT to show how the woman is feeling towards with a man. However she is trying to be descreet about it to keep her ladylike status. She also uses nature to describe her desires sexually once again trying to be descreet. “My thoughts do twine and bud”
The speaker uses nature in porphyria’s lover to emphasise the brutal storm that is happening and that shows how angry the speaker feels about killing porphyria. “And did its best to vex the lake”