Mood Indigo

The song describes a speaker overwhelmed by loneliness after a loved one leaves. The sadness seems to return regularly, especially in the evening, when the speaker is alone. The feeling grows from ordinary unhappiness into something so intense that the speaker imagines not wanting to go on. The emotional movement is not toward recovery; instead, the lyrics dwell on how deeply the loss is felt.

“Mood indigo” is a metaphor for an especially deep kind of sadness: “blue” means sad, while indigo suggests a darker, more intense shade. The feeling “goes stealin’ down” to the speaker’s shoes, making sorrow seem to travel through the body and weigh the person down. The low evening lights also create an image of a quiet, lonely setting that matches the speaker’s mood.

The lyrics use exaggeration to express despair, particularly in the claim that the speaker could lie down and die. This may be a dramatic way to communicate heartbreak rather than a literal plan, though the words convey serious emotional pain. The song gives little detail about the relationship or the goodbye, so its focus is less on what happened than on the speaker’s experience of being left alone.