This story is a sequel to my fanfiction "Son of Ilúvatar" and cannot be understood without knowing the content of that fanfiction. So let me give you a
summary of „Son of Ilúvatar":
After his death, Boromir reaches Valinor, the blessed island in the West, eternal home of the elves and resting place for the souls of the dead. There he meets Galathorn, who turns out to be the person known in our world as Jesus. Having glimpsed a vision of him on the cross, and wanting to understand further, Boromir is transported into our world. Here he meets a young woman whom he calls Ninglor. She introduces him to her world and he forms a tentative attachment with her before he is abruptly taken back to Valinor. Having fallen in love with Ninglor, he yearns to return to our earth to help her with her problems, but he has to deal with his own issues first. Having received forgiveness for his mistakes and inner healing, having given his life to Galathorn and dealt with some of his past demons, he is offered the choice to either remain in Valinor, return to our world, or return to Middle Earth alive once more and continue in the fight against Sauron. Out of love for Ninglor he forfeits his beloved Gondor in favour of our world, even though he has no guarantee that he will find Ninglor here or that his love will be accepted by her.