A good poem title depends on the type and style of the poem. Every poem needs a strong title that matches the its tone and style.
A good title for a poem grabs the reader's interest. A poem's title sparks the emotion that the poet wants the reader to feel. A poem title may be a line, or a part of a line, from the poem. It can rephrase a line of the poem that evokes the overall tone of the poem. A good poem title can also be either an image that stands in contrast to the main image of the poem or a synonym for its main image.