Keller treats the idea of tomorrow as a symbol of possibility. The future is not yet fixed, and this uncertainty can contain reasons for hope as well as anxiety. By focusing on the word itself, she draws attention to the fact that new experiences, relationships and forms of purpose may emerge beyond the limits of the present moment.

In the context of We Bereaved, the statement carries particular weight because it appears within a work concerned with grief and loss. Keller does not suggest that future possibilities erase sorrow or replace what has been lost. Instead, she presents the future as something that can still contain meaning despite bereavement. More broadly, the quote expresses a forward-looking view of life in which change leaves room for renewal. Its central idea is that tomorrow remains open, and that openness can support hope when present circumstances feel constrained or painful.