AI-generated summary
The author expresses their joy as a father, watching their baby grow and feeling happy. They feed their baby milk and find fulfillment in seeing them sleep peacefully. They are willing to sacrifice everything for their child and believe that their efforts and pursuits are worthwhile. They also understand and appreciate the feelings of being a parent, realizing that being a parent means selflessly caring for their child without expecting anything in return. The author emphasizes the importance of cherishing the present moment.