Well, duh. Of course "[i carry your heart with me(i carry it in my heart]" is about love. But we're not talking about ruby cheeks and flowing hair. That stuff stays in the Renaissance where it belongs. Instead, Cummings focuses on the unity of love and how it connects not only these two lovers, but also the world at large.
Love isn't just about getting the girl in Cummings's poem, but rather is focused on the idea of unity and the world at large.
Nice try, but let's flip that script. Even though the speaker refers to love unifying the world, the poem's focus is more about the love he carries within him at all times.
If we're talking about E. E. Cummings, you better believe we'll be dealing with some sort of issue with language and communication. "[i carry your heart with me(i carry it in]" is no exception, even if it's more focused on the idea of love. But with all the squishing of words, parentheses, and the playing with language, we know Cummings is taking a poke at those linguists.
Love again? Yawn. Though love is the central theme of the poem, Cummings is obviously trying to provide a very different way of looking and thinking about love through his use of language.
It's too close to call, y'all. It's a toss-up between love and language being the central theme to this poem, since we're constantly being shocked into "fresh eyes."
It's safe to say that the speaker is in awe of his lover and the love he carries with him. "[i carry your heart with me(i carry it in]" is a great example of a modern poet borrowing some of the awe and amazement the Romantics were all about and bringing that feeling up-to-date. We've still got the occasional romantic cliché, but Cummings is careful to balance the clichés with his avant-garde style.
Love is an amazing thing (as a concept anyway), so it makes sense that the speaker would see the rest of the world in such an "awesome" way.
The speaker may be amazed, but he takes his time getting there. It's not until the third stanza that we start to hear the speaker thinking in an awe-inspired way with that "tree called life."