We should always stay calm regardless what life throws at us. When we encounter hardships, the first observation we must make is whether it is in our reach to solve the issue facing us. If a progression can be made by us it is good, because we can make it disappear by dealing with it. If it is an issue out of our reach, it is foolish to worry about it, because we have no tools to change it in its nature. We must stay calm either because we can deal with it, and the best way to deal with something is with a mind of clarity, or we cannot deal with it, therefore our worrying will do no good, but a lot of harm to ourselves.