Themes
Don't let the sun go down upon your anger. Forgive each other. Begin again tomorrow.
— Marmee · Little Women

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Marmee sets a limit on how long anger should be carried, then gives forgiveness as the action that makes a new start possible. Tomorrow is presented as an opportunity rather than an automatic cure. The sequence places reconciliation between the grievance and the fresh beginning.
Context reviewed