Taking its title from a poem by Paul Celan that is both elegiac and hopeful, but also playing off the notion of the "hart" walls erected to corral deer for a medieval hunt that was more a slaughter, and evoking the very physiology of the heart itself, this collection of poems explores the possibilities for love and feeling in a world besieged by tragedies in Bosnia, Kosovo, Rwanda, and elsewhere.

At times lyrical, at times satirical, at times aphoristic, Heartwall explores the complex relationship between the personal and the political, between our individual perceptions and the larger vision they suggest. These are poems that ask forgiveness, offer praise, and carry enough irony never to seek redemption. They are, at heart, love poems. According to the late William Matthews, Jackson's poems tell us "what it means to belong in history. . . . The wonderful amplitude. . . testifies that we can live with such chaos and not lie about it or ignore it: indeed the poems are a demonstration of how we might do such a thing".