Moon about

Origin

The phrase "moon about" captures the essence of someone lost in thought or idleness, much like the moon itself seems to drift aimlessly across the night sky. For centuries, the moon has been linked to human temperament, from inducing madness (lunacy) to inspiring dreaminess and romantic reverie. This idiom specifically draws on the image of someone moving without clear direction, their mind elsewhere, as if enchanted or under the spell of the moon's ethereal influence, leading them to wander in a state of unfocused contemplation rather than purposeful action.