Exploring the motif of light in 'Macbeth'

In 'Macbeth', Shakespeare repeatedly uses the motif of light alongside the themes of innocence, guilt and sin. Macbeth initially wants darkness to conceal his sin from God, demonstrating his guilt. Shakespeare uses light imagery to describe the macrocosm, suggesting the wider repercussions of Macbeth's guilt. As the play progresses, Macbeth's alignment with darkness may show his moral compass becoming tainted. The light imagery associated with the murder of Banquo could represent the murder of innocence.