Thanks for your comment and question. The key benefits are that baby massage promotes bonding and secure attachment between parent and baby through nurturing touch. It also stimulates the digestive system which relieves gas, constipation and colic. As it facilitates relaxation it can also improve sleep.
I love teaching baby massage classes as I see the benefits firsthand; when babies fall asleep during or after classes and when I see parents enjoying the 1:1 interactions with their little ones.
I hope this helps