Throughout his life Theodore Roethke loved natural objects intensely and wrote poems on nature with a different view from those of his contemporary poets. When indifferent objective descriptions of nature prevailed, his nature poems were filled with subjective interpretations of nature. In his poems the spirits exist in natural objects and the speaker is in communion with each natural object finding solace in the journeys he takes across North American continent. In a way, his thoughts about nature can be said to be similar to those of subjective Romantic poets or former American poets like Emerson or Whitman. This paper deals with Roethke`s later poems on nature and journey, which were published a year after his death. As he settled in Seattle where the sea and the land meet, he began to describe minutely the natural objects of his surrounding area and North American continent. The poems strikingly exhibit his conviction about the existence of spirits in nature and the possible communion of a human mind with natural objects. With his mental illnesses his troubled soul sought solaces in nature more. Roethke`s poems in his later years are sprinkled with his childhood memories, especially those in his father`s greenhouse. It becomes evident that the poet speaker gets personal salvation through observing nature and the souls` movements he perceives in natural elements. The poems are vivid and unique with the poet`s subjective interpretations of minute natural objects such as birds, trees and roses. They also achieve an unprecedented poetic effect through scientific yet subjective interpretations of nature.