describe the air of cheerfulness

Touching the Ghost's robe, he finds himself in the city streets, on Christmas morning itself. The descriptive, vividly-drawn scene is best summed up in these lines: "There was nothing very cheerful in the climate or the town, and yet there was an air of cheerfulness abroad that the clearest summer air and brightest summer sun might have endeavored to diffuse in vain." We learn that the cheer is due to the presence of the Ghost-that is, to the season of Christmas. The Ghost sprinkles passersby and their dinners with his torch, which has the effect of ending quarrels.