Any kinds of sentiment,no matter in which ways last.The procedure must be happy,so the pain of memory will not has happiness,and we has used to the pain of memory increasingly.
Any section of sentiments, regardless of comes to an end by what way,the process inevitably has the joy, therefore in recollection ache,also cannot have the joy, but we have gradually been used to it in therecollection ache.
参考资料：線上翻譯