What term describes the intense thoughts someone may have about a deceased person?

The term that best captures the intense thoughts someone may have about a deceased person is "grief." Grief encompasses the deep sorrow, emotional anguish, and complex feelings that arise after a loss, particularly the passing of a loved one. It often includes reflective thoughts, memories, and emotional responses connected to the person who has died.

While "searching" could suggest a desire to find understanding or make sense of the loss, it does not specifically refer to the emotional intensity of thoughts surrounding a deceased individual. "Reflection" refers more generally to contemplation and thought without the emotional weight that accompanies grief. "Loss" denotes the state of being without the deceased but does not encompass the emotional experiences and thoughts that accompany grief. Therefore, "grief" is the most accurate term to describe the intense thoughts and feelings associated with a deceased person.