Step 1: Identification of the poem.
The lines in the extract are from the poem "A Prayer" by Rabindranath Tagore. The poem is known for its deep emotional expression and philosophical reflection on longing and the search for meaning.
Step 2: Confirming the author.
Rabindranath Tagore, a renowned poet and philosopher, is famous for his poetic works that delve into themes of spirituality, human emotions, and the human condition. This poem is a part of his collection, where he explores such profound themes.
Step 3: Conclusion.
Therefore, the poem is "A Prayer," and the poet is Rabindranath Tagore.
Final Answer: \[ \boxed{\text{The poem is "A Prayer" and the poet is Rabindranath Tagore.}} \]