Tragedies

In the past two months, I have heard about 4 people who have passed and they were all in there 20's. The first was Josie, who I've spoken about in a previous post. Then last week I found out that a guy I used to work with, Scott passed away (reason unknown). On the same day, I also found out that my old roommate’s younger brother was murdered and then today, today I found out a friend of mine form high school's fiancé has passed away. I don't know what's going on, it's overwhelming. All these people were here one day and gone the next. Except for Scott none of them and there families knew that there last days were there last. I'm struggling to rap my head around it all. What are we supposed to learn from it all? I don't think I can take anymore of this so I beg everyone to please be careful, drive safe and live each day, as if it's your last.