The text above states how the speaker feels happy to face a new day, and how he wants to appreciate the beauty of everything that surrounds him. He has a positive attitude, and even his chores are delightful to him. If the text had been written in an ironic tone, this would imply that the speaker is in fact dissatisfied with his life, and that he does not want to face any of his duties. This would severely affect the meaning and theme of the passage, as it would change his positive outlook in life to one of negativity and displeasure.