In this act Macbeth says he has forgotten the taste of fear and seems bored with everything. Even when a servant announces the death of his wife Macbeth he does not move but rather says that sooner or later it should have happened since it is the cycle of life. By now Macbeth no longer cares about the things around him, worn out by his actions to be able to ascend the throne and just waits for his moment to arrive too losing his humanity.

Important topic-> awareness of time and how people change

candle = metaphor of life (its duration is as short as our moment of glory)

The intelligent reader understand the reflection of life by Macbeth. He confess that he seems accept everything that happens in life.Our life is a continue passing of time.