Bonding is simply the special attachment that forms between parents (especially the mother) and their new baby. This bond is what makes parents alert and aware of their baby's every need and discomfort. Actions like rushing into their newborn's room in the middle of the night at the slightest whimper or sound that only them heard.
The bond also makes parents want to instinctively care for and nurture their child.
For some people it takes sometimes before the bond, the emotional attachment is formed while to some the just feel in love with their newborn immediately they set eyes on them.
This bond results primarily from body contact, as has been shown by studies. Holding the baby, breastfeeding, stroking the baby and lovingly rocking her to sleep all makes the emotional bond between mother-baby stronger.