"Celestial" refers to something related to the heavens or divine qualities, which is best captured by the word "Divine" (Option 4). The other options are incorrect:
- "Perilous" means dangerous, which does not relate to celestial or heavenly qualities.
- "Perpetual" means never-ending or lasting forever, which does not fit the meaning of "celestial."
- "Enormous" refers to something large, which is unrelated to the meaning of "celestial."