Keepsake Hints

Could you help me solve the third rhyme (Hard as rock...)?

  • 1 of 5: These hints are for the rhyme that reads: "Hard as rock or soft as moss, I am a source of life but kill as well; And when your last dance comes, In my welcoming arms you'll dwell."
  • 2 of 5: The word "dance" can be a bit misleading -- it should not be taken literally.
  • 3 of 5: The phrase "last dance" refers to death.
  • 4 of 5: Life and death could be referring to the circle of life.
  • 5 of 5: The answer is Nature.