The devastation of losing a child never quite goes away.No matter how many years separate us from the tragedy, the heartache always looms, often returning in waves, to crush and paralyze us once more. Yet at some point in the sustained nightmare of grappling with the sense of pointlessness that accompanies inconsolable grief, something seems to click faintly inside: ever so slowly, and at first with great hesitation, we seem to stumble on a source of strength to embrace another day, and to broaden our horizon in order to find a slightly, perhaps even significantly, recalibrated purpose in...