My mother gave me this when I gave birth to my daughter and it is one of the most precious gifts I have ever received. The love a mother has for her child can't be put into words but the following quote by this unknown person came pretty close.
'What took me by surprise is the way I feel when her face lights up when I walk into a room because I am her world and she is mine. Being a mother is like taking your heart out of your chest and watching it walk around.' - Unknown