Religion can show us the way in a world in which bad things happen. It can teach us that much of what see is so complex we cannot understand why and how it occur.
There are so many mystery in the world, everywhere there are questions. Religion offers answers, consistency and HOPE !!! and This point doesn't only emphasis on religious necessary but to hold your values and believes strongly. I myself don't have a religion, but i do have things i believe in deeply and it does keep me at peace. :)