[These letters] present us with as inward a view of one of God’s rarer creatures as we are likely to be given… The letters themselves are as no others. The briefest line can be a mystery (and, when fathomed, a communion), the formal note a sign… If [these letters] are put alongside those of…Coleridge and Keats, they will present the most striking contrast in a poet’s reactions and sensibilities. But they will stand there unashamed.