This saying refers to people who are in love sharing their lives together.

Hello Malak, No usually each heart stays there where it belongs "in its own body" and they remain 2 , I never heard of that case where they became 1 ?? That must be awesome! Yet I wonder where does it rest then ,in the male's or female's body ?;) Or they merge into a Hologram floating around the couple in love ?

I think, that person can give (gift) her heart.

indeed. love binds two hearts together as one. :)

yes! if two hearts dont become one. then it is not love!