His Navy Psychiatrist (one of Denzel Washington's best characters ever) encourages him to go and find his real family in order to get at the root of his problems with aggression & feelings of worthlessness. And so, when he finally does find the family of his deceased father, there comes the most beautiful scene in the whole movie, where he enters his aunt's house and meets all the relatives he never even knew he had, everybody eagerly welcoming him, introducing themselves briefly to him with excitement, until finally his aunt gives the signal to open a double door to the dining room, where the old members of Antwone's family sit awaiting him at a richly decked table, very similar to a dream he had at the start of the movie.
An old lady (presumably Antwone's grandmother), obiously too weak to even speak, knocks on the table in an effort to demand attention and beckons Antwone to come to her with outstretched hands. Gazing into his eyes, hands in his, and recognizing her long lost son in this, newly found grandson, she finally utters one heartfelt "Welcome," and in this moment you feel like, if you'll ever make it to Heaven, this will be the only word you'll want to here.
And yet, I am convinced that every person has a huge family awaiting them in eager anticipation, like Antwone Fisher, consisting of ancestors we may never even have heard about. We may not know them, but they know us alright.