I am talking about The Witcher. Spoilers Ahead.
When Geralt fell sick in S01E08 a man carried him in search of aid. While they rested in a jungle, Geralt saw his mother. He was angry at her, "Visenna", for abandoning him as a child. There was a conversation about his mother's reasons. During this she attempted to heal Geralt. Then, he awakes and it appears as if this had been a dream.
Was this magic? Did his mother actually heal him? Or was it just a fever dream?