The pericardium is like the heart's bodyguard and also its messenger. It helps with some heart issues like feeling dizzy or confused. The heart is super important because it takes care of our spirits and controls other parts inside us, like our guts and other organs. If something bad tries to harm the heart, it usually has to get past the pericardium first. In Chinese medicine, this means the pericardium keeps the heart safe most of the time.