Palindromes

The thing about a mirror is that it doesn’t have much color of its own. So a rainbow mirror needs color to be supplied by you!

If heaven and hell decide that they both are satisfied / Illuminate the NOs on their Vacancy signs // If there’s no one beside you when your soul embarks / Then I’ll follow you into the dark // - with much gratitude to Ben Gibbard

Some people seem fixated on Inuit people having many words for snow, but English does too! From blizzard to whiteout, with flurries, graupel, and drifts, we have so many words. The one this puzzle’s palindrome lines make me think of is sleet.

You need not use SET (Set Equivalence Theory) to solve this one, but it's more fun to do so.