This song is a cue for us adults that the SELFishness of toddlers is a normal and necessary stage in the development of the sense of self.

Song Lyrics: (Public Domain)

If I want it, it’s mine.
If I give it to you and change my mind later,
It’s mine.
If can take it away from you, it’s mine.
If I had it a little while ago, it’s mine.

If it looks just like mine, it’s mine.
If we are building something together,
All the pieces are mine.
If it’s mine it will never belong to anybody else, no matter what.
It’s mine.