Oct question

On the daily homework this month you ask us to list some positive and negative circumstances from our life. But I thought the circumstances were always neutral?? I also noticed today that the last question for the day was to write down negative thoughts I’ve thought throughout my life, was it intentional to end with the negative thoughts? I didn’t have a great feeling going into the day. Hoping to understand this better thank you!!! I am not understanding the intention of the daily work thanks