Capital Steez brought the idea of 47 to Pro Era

47 Balance
The balance of the heart chakra (4) and the hardest chakra to align, an enlighten mind/conscious (7)

The balance between these two chakras is said to be the hardest. The heart may want one thing but the mind may seek other endeavors, knowing that the heart will get in the way of achieving these endeavors the two chakras will become imbalanced. Hence, is why Capital Steez stressed so much about the importance of balancing the two chakras. They both heavily rely on one another so balancing them will help better the chakra system.