The blessing was from a young child’s lips, but it was the first that Oliver had ever heard invoked upon his head; and through all the struggles and sufferings of his after life, through all the troubles and changes of many weary years, he never once forgot it. (7.59)
Little Dick, Oliver’s friend and fellow-sufferer at Mrs. Mann’s baby farm, is the first person ever to bless Oliver? Seriously? For an orphan who is at least ostensibly being raised by the Church of England, Oliver’s had remarkably little religious training.
This sentence, although it sounds pretty dreary, suggesting that Oliver will "struggle," and "suffer," and have "troubles and changes" through "many weary years," actually does give a bit of a light at the end of the tunnel: at least we know he survives for many years after this moment, and considering what he’s been through already, survival hasn’t always seemed likely. Are we grasping at straws here? Maybe.