'"________keeps us alive with hope" (fill in the blank)

"Lament keeps us alive with hope
           when the temptation is to surrender to a defeated numbness."
-Brian J. Walsh, in a discussion of Bruce Cockburn's "Humans" ("If Bono is right, and Cockburn is a psalmist, then Humans is a collection of psalms of lament" ) in terms of Bruggemann and the psalms.  Pp. 116-17, Kicking at the Darkness: Bruce Cockburn and the Christian Imaginination