Religion in Frost``s poetry has been treated as a matter of secondary importance, because of the dominance of nature in his poems. But religion, or religious nature, of his poetry has steadily attracted attention since 1960``s. If we examine his works, however, we cannot find any definite evidence of the doctrine of Christianity or any doctrine of belief. The miracle, one of the most conspicuous features of religion, has no place in his work. Instead Neo-Platonism or Stoicism are the cores of his "religious" masques and "terrlble" poems. His tragic "homes" and unsatisfactory "vocations," however, form a basis of religion. And his unpenetrable "nature" is presented as a condition of religion. In this sense only he can be called an essentially "religious" poet.