One of the most important lessons we can learn is that we are valuable and important to God (we are made in His image and He sent His only Son to save us), but we are not the centre of the universe. That place belongs to God alone. We need to eschew a false sense of self-importance which puts us at the centre of life in order to allow God to have first place.
The ability to laugh at oneself and not take oneself too seriously is hugely important in learning to eschew a wrong sense of self. So much of our lives is spent worrying about things and fretting about how others see us, how we will get on in life and how we will manage. When we realise how much God loves us, we are freed from the need to be in control, the need to manipulate and the need to be number one.
