'And so Tom awoke and we rose in the dark And got with our bags and our brushes to work Though the morning was cold, Tom was happy and warm; So if all do th...

Answer Details

In the given lines, Tom is described as being warm. The reason for this is that he is doing his duty. The phrase "So if all do their duty they need not fear harm" suggests that as long as Tom and others are fulfilling their responsibilities, they will be safe and secure. Therefore, Tom's warmth is a result of his dedication and commitment to his work rather than any external factors such as working indoors, wearing warm clothes, or just waking up from sleep.