Ambivalence in the Ending

I actually felt pretty satisfied with the ending. Yes it did leave a lot of unknowns with regard to the specifics of his future, but I think the final scene at the funeral gave a sense of closure and let the reader know that he has reached a significant milestone on his search for self-identity. No one does anything particularly special during the funeral: Lame Bull gives a lame eulogy (pun intended), Ferdinand Horn and his wife do not attend, but the narrator puts the tobacco pouch in the grave, which is a traditional offering for the spirit of the departed. I read this to mean that he has found a place within his culture, and has an appreciation for the ceremonies, etc. I thought, after I read the book if the narrator would have acted the same way at the beginning of the story, and I don't think so. He might have just filled in the grave, covering the coffin, and gone about his way. This change may have come from the trauma of losing Bird. The moment in the rain (water being another sacral substance in Blackfeet culture) seemed to be a revelatory moment for him.