The singer says, "It's just a state of mind.." In other words, whether you feel happy, or sad,
successful or unsuccessful, depends on your attitude, depends on how you look at it. Have
you ever had an experience -for example, you tried a challenge, or had a project of some kind,
that, at first, you felt negative about? ("I didn't do well." "I'm unhappy with my life/situation now.")
But then you tried to think positive and you felt better about it? Tell me about that experience..