For a parent nothing can be more satisfying than watching their kid grow and cross the threshold of different ages and stages of child development. It is important for good parenting that you, as a parent, understand and be prepared for these stages.
"How to massage your baby." Baby is constantly building muscle and, just like us, that makes them sore. I would consider a message with some lavender essential oils to smell and candle lit. Maybe right after a warm bath and get baby relaxed for sleep.