Whoever wrote this episode synopsis obviously does not get that when the characters talk to dead people in certain scenes, they aren't talking to ghosts or apparitions. The dead people aren't really themselves, they are the metaphorical presence of the characters' own thoughts about themselves and their unresolved issues with the people who died. The series doesn't have elements of the supernatural. Every single ghost-like apparation is explained by the characters' thoughts and their internal monologues. It wasn't the father that told David he didn't approve of his homosexuality, it was David himself talking about his feelings of being rejected by his father, wondering if the father had something against David being gay.