To be happy in life and successful in business you need two things in life:
1) empty mind, to have vision (freedom to choose), and
2) open heart, to have self-confidence (the power to decide).
Thoughts give us a full mind (confusion, ignorance). A full mind causes blindness (limits - we are in a box), we lack vision, so we dont really have "freedom to choose".
Emotions make our heart close. A closed heart causes weakness, we lack self-esteem, and so we dont have power to decide.