Always Follow Your Heart Unless Your Heart Is Bad With Directions
The quote is a humorous way of saying that one should pursue one's passions and dreams, but also be realistic and sensible about the choices and consequences. Perhaps, Spongebob means that following one's heart can sometimes lead to undesirable or impractical outcomes, especially if one is not clear about what one really wants or needs. Therefore, it is important to balance one's emotions and intuition with one's logic and reason, and to seek guidance and advice from others when necessary.
This also suggests that one should not blindly follow one's heart without considering the context and the circumstances, and that one should be flexible and adaptable to changing situations. The quote can inspire people to pursue their goals with passion and enthusiasm, but also with caution and wisdom.