Christmas is not a time or a season but a state of mind. To cherish peace and good will, to be plenteous in mercy, is to have the real spirit of Christmas.

Coolidge frames Christmas less as a date on the calendar than as an inward disposition expressed through conduct. The “real spirit” is defined by ethical and civic virtues—peace, goodwill, and mercy—rather than by consumption, ritual, or mere sentimentality. Read this way, the line universalizes Christmas: its meaning can be carried into ordinary life and measured by how one treats others. The emphasis on mercy also shifts the holiday from self-regard to generosity, suggesting that the season’s value lies in habits of compassion that outlast the festivities.