To Live is to Change
We constantly go through changes outside of us (defined by time), so it is only natural to do that with our minds. Paradoxically enough, our ego and fear try to hold on to where we are. We get comfortable in a situation that we find works for us, and if we overextend our stay in it, it is like being those annoying guests at parties that come first and go home last. Eventually, the situation will kick us out or go to sleep into a depression.