Human beings are emotional animals and life is full of the unexpected. Sometimes one can't even fully control his own life, let alone others. Everyone is supposed to cherish his or her life and face bravely whatever appears in it. Difficult though some setbacks may seem, fear, complaint, depression, pessimism and so on, these negative feelings would only make the temporary tough situation even worse. Nothing lasts forever, so do difficulties. Worrying too much either about yourself or your close relatives or friends doesn't help at all.
So many unexpected events happen in almost everyone's life. To cherish what you have and to love today as if it were the last day of life could be the best way to live a meaningful life and you wouldn't have any excause to waste time. Enjoy life while you still have it, love the people who love you and you love while you still can, cherish each minute of your life for it is valuable and unique. Instead of worrying about tomorrow, we'd better cherish what we have today.
Sunset is as beautiful as sunrise; rain is as amazing as snow; the sun and the stars all shine brilliantly. You are just as unique as everyone else.