Another theme could be the son taking care of his mom when she is ill. He might take her to the best doctors, stay by her side day and night, and do all the little things like cooking her favorite meals and making sure she takes her medications on time. This shows the deep bond and the son's sense of responsibility towards his mom.
Sometimes, it can be about the son taking his mom away from a difficult situation. Maybe the mom is in a toxic environment at work or in a bad relationship. The son steps in and takes her to a new place where she can start anew, giving her a fresh start and a chance to be happy.