Just a year after the death of Gurudev Rabindranath Tagore, a collection of his verses in English, titled as Poems was published by Visvabharti. Most of the poems in this collection were translated/composed in English by Tagore himself. Hence this collection seems important from two perspectives-one the time of publication, and second the first-hand translation/composition. Unfortunately, this collection didn't get much attention from critics, though it is this book that proves Tagore as a true mystic poet, as the obscure poet and as the poet with strong oriental roots. This collection stands witness to Tagore's transformation from Romantic spirit into a Mystic. The verses in the Poems may appear vexed or difficult to a general reader but they are the poet's deep communication with the supreme energy. In these mystic poems, most of which are in free verse, poet has used nature as his tool to portray different messages. The theme is single, i.e., a humble prayer to God yet the poems are different in context to the use of nature. The objective of this paper is to solely analyze the presence of nature in the mystic poems present in the Poems. The paper establishes that nature was the only tool for Tagore's mysticism.