The King provides directions for everyone’s healing:
…a place of comfort and safety is not far away. The specific instructions are to go down the road – whatever road one is involved with at the moment – turn left, which is to say go toward the unconscious or the world of imagination an fantasy, cross the drawbridge – the division between our conscious world and the inner world of imagination – and one will be in the Grail castle, the miraculous place of healing…
A detail of the story is encouraging: Parsifal need only ask the question; he is not required to answer it. Once the question is asked the answer comes from a source greater than his store of personal wisdom.
You get to visit the Castle every night when you sleep.