There seems to be some relationship between the two. The obvious physical reality of death can mask its emotional impact. But, surely our emotions are affected by the death of a loved one. We are required to change our relationship with the deceased.
Tiger may have been struggling with that relationship at the U.S.Open but seemed to have it figured it out by the Open. How much was Chris Demarco affected by his mother's death.? I think quite a bit.
The commentators seemed to get close to the "emotional" impact of death, but I think there is more to explore on this topic.
As for myself my dad has been gone for ten years but I still lean on the lessons he taught me about golf as life.