There's another way to edit the sentence, which is to add a comma before the second 'which.' The survivor is struggling toward 'some resolution,' not a specific resolution that the mind may never find. The final clause is an appended thought, not a conclusion of the previous clause: 'Death ends a life, but it does not end a relationship, which struggles on in the survivor's mind toward some resolution, which it may never find.'
Robert AndersonAll you're supposed to do is every once in a while give the boys a little tea and sympathy.
Robert AndersonA lot of young writers wait for inspiration. The inspiration only hits you at the desk.
Robert AndersonThat Jesus of Nazareth died upon a cross is mere matter of history; that He who did so die was the Christ the Son of God is entirely a matter of revelation.
Robert Anderson