Our external world is a direct collective representation of our internal worlds. In order for global peace to exist, we must first clean up our internal environment, to find our own inner balance and peace. Depression, anxiety, and other mental/emotional imbalances are at an all time high, as is a general dissatisfaction with life.
Any sort of illness, whether it be physical or mental, is a messenger, a call from Spirit to bring our focus inwards, to take time to witness ourselves and the unfolding of our own inner process. We are often all to quick to project onto others how they should think, behave, etc. but, honestly, how often do we pause to check that we are in alignment in all aspects of our own lives; mind, body, and spirit?