Thanks Guy, now that you say that I am relieved to see that at least I have figured out some things, because I find the quote really good and you confirmed me that it is pretty much the backbone of the film.That quotation probably sums up the film better than any other single quotation could. Block calls upon God, and there is no answer; he gazes into the abyss, and there is nothing there.
The others perforce make their peace with Death in the silence, but only simple Jof ("You and your visions!") can see that God has not abandoned the world, and nobody believes him.
If you need an antidote to The Seventh Seal, Bergman probably did too, because his next movie was Wild Strawberries. Or Smiles of a Summer Night; this reminds me of the non-canon story of Geralt and Yennefer's wedding.
I'm still absorbing the the contents of this movie, however. Also now I've completely figured out the role of Jof, apart for him and his family to be the "solution", the answer for all the questions Antonius asked. He saw Holy Mary, and he saw Death playing with Block, who understood that and "sacrifice" himself when Death won deceptively, that part struck me as the quote said before. All mocked Jof for his visions and he was the "right" point.
Thanks for the advice too, I've just found Wild Strawberries. I will watch it, I really need an antidote, heh. Then I'll search for Smiles of a Summer Night.