As a taperprovideslight This is emblematic of how LadyMacbeth is seekinglight, hope and solace in her eternal mental darkness
in Christian symbolism, light often represents hope and divineguidance. Thus, Lady Macbeth enteringwithataper Can be seen as adesperategrasping for solace and perhaps even a subconsciousplea for God's redemption from the sins that torment her
Her need for the light is the antithesis to her earlierpresentation in Act 1 where she calls upon the night, wanting darkness to helpfuel her violent and malevolent plans: "come thick night"
The motif of darkness and light Reinforces how LadyMacbeth'sdepraved and darkwants for violenceconsequentlycause her desperation to see the light and seekredemption