This is one of the most emotionally disturbing passages in the novel. In an ideal world, the prospect of being reunified with a lost family member would bring instant joy and relief. But the reality is that the psychological scars of separation are so deep that it is essentially a form of harm that cannot be undone. Indeed, Thena obviously feels re-traumatized simply by Hiram reminding her that her children are alive and presenting her with the possibility of reuniting with Kessiah. It is simply too much for her to handle.