Read the following stanza carefully and answer the question that follows it:
Break, break, break,
On thy cold gray stones, O Sea !
And I would that my tongue could utter
The thoughts that arise in me.

What is the mood of the poet?

This stanza is from Alfred Lord Tennyson's elegiac poem Break, Break, Break, written to express his profound grief following the death of his friend Arthur Henry Hallam. The references to "cold gray stones" and his inability to express the deep thoughts inside him show a somber, melancholy, and pessimistic emotional outlook.