the way i see the story is: you find your lover upset but dont know why until you come across the grave and realize that you died. you hate seeing her so gloomy and desperately want to bring the 'color' back into her life. one by one you gather things that meant something to her and you and she starts getting better. as you gather the items you realize that you are fading away and your time is almost up. you place the last object down and bid your final goodbye. she faintly hears your voice and looks back only to see you're gone. a smile graces her and she comes to peace with your absence.
but thats just my point of view on it