If you live with those assumptions, it isn’t a far stretch to believe that it would be best to get through the crisis and loss with the least amount of emotion possible. What would be the point of feeling all of that deeply? In some ways it doesn’t make sense to engage deep emotion if you don’t believe in God. If you don’t believe in God there is no anchor, no refuge, no safe harbor, and no safety net.
I decided not long after I became a Christian that one of the ways I wanted to live differently was to feel more deeply. Believing in God gave me the courage to do that. Slowly I came out of numbness. It hasn’t been easy but it is better.