The two protagonists are there to support each other and help each one succeed. Grant's story unfolds with Jefferson. The community involved in their path towards their destination is the black community and the Reverend. Grant was guided towards reconciling his insecurities regarding his race and also reconnecting to his roots, making this the first step towards his success.
Envious, maybe you have the wrong bible version on?
The purpose of Mary's visit to the grocery store and conversation with Sam is to establish a credible alibi for herself. Within the previous hour, Mary's husband told Mary that he was leaving her. Shortly after, Mary clubbed him to death with a frozen leg of lamb.
