Uneasy mind, too heavy heart. What do you mean?

"The mind is undecided and the heart is too heavy." This sentence means that your mentality is not stable enough, you don't know your duties, you can't fully enter your role, you can't fulfill your obligations, and you can't assume your responsibilities. You will be easily attracted by external things and those delicious and fun things, because you are too busy playing and can't settle down and concentrate on one thing at all. "The mind is undecided and the heart is too heavy." It can also be simply understood that you are not mature enough at present