do you cry

I am not one for showing my feelings. My father died 3 years ago and we was never close or shared any pastimes. When we went to see him in the chapel of rest all my kids and family was crying but i felt nothing the body of the man that was lay there did not look like my father strange i know. When it came to the day he would be layed to rest as we walked down the church to the front seat i started to cry and i suddenly opened up and could not control my feelings. How can a man i hardly knew have such a deep affect on me. I go to his grave and each time i pass the grave yard i say hello dad. strange how the mind works