Honestly, when I first taught this lesson, was so confused. I didn't know anything about stock market. Even now my knowledge about it = zero. As if it did not exist in my own world. :-)
But as a teacher (maybe cheater in this case) I educate myself by asking my colleagues and ANH and searching information on the internet. Gradually I feel confident teaching this unit. It is said that in order to get returns from your investment in stock market you should analyse companies you want to invest in carefully: financial situation, performance, potentials .... , based on rational reasons NOT emotional reasons.
If HEART you want to invest in somebody was like MONEY you want to invest in companies, how would you choose that SOMEBODY to invest your heart in?
Of course, HEART is not MONEY......................