Here's why:
* Content: The subject matter of the poem influences the form. A poem about a fast-paced action scene might be written in a free verse style with short, choppy lines, while a poem about a serene landscape might be written in a more formal, flowing form like a sonnet.
* Purpose: The poet's intention for the poem also plays a role. A poem meant to be sung might have a strong rhythmic structure and rhyme scheme, while a poem designed to evoke a specific emotion might prioritize imagery and symbolism over a traditional form.
It's important to note that this is not always a strict rule. There are instances where poets intentionally use form in unexpected ways to create a particular effect or make a statement. However, generally speaking, form and content work together to enhance the overall impact of the poem.