There seems to be a consensus in Wild Strawberries that Isak (Victor Sjöström) is lonely and isolated because he is cold and aloof. Actually, he does not seem so bad. He is friendly enough with other people, and he appears to be content with his relatively solitary existence. Anyway, Sara (Bibi Andersson), the woman he loved when he was young, married his brother, and somehow that was Isak’s fault, because he was cold and aloof. And Karin (Gertrud Fridh), the woman he ended up being married to, cuckolded him, but that was also Isak’s fault, because he was cold and aloof. He visits his mother, who is cold and aloof. His son Evald is cold and aloof.
I suppose the point is that if Isak’s mother had been warm and friendly, then she would have raised him to be warm and friendly, and then Sara would have married him and they would have lived happily ever after. Or Karin would have been faithful to him and they would have lived happily ever after. And they would have raised their son Evald to be warm and friendly, so that he and his wife Marianne (Ingrid Thulin) could have lived happily ever after. And being warm and friendly, Evald would have been happy to hear that Marianne was pregnant, so that they would have a child of their own, whom they could raise to be warm and friendly.
Having seen the error of his ways, Isak decides that he will henceforth become warm and friendly. Better late than never. So, he asks Agda (Jullan Kindahl), his maid of forty years, if she would like to be on a first-name basis. She rebuffs him.