Haha interesting knight tales.
The glorified version sung does mention knights protecting their precious golden pussies.
Think there is heresay a common version passed down in the villages. That the pussies that are so protected are nothing but whores, who enjoyed as much the common villager's dick at ten silver pence, when the knights are off with their quests of course.
Appearing holy only to the knights but are simply common whore to the villagers. Stuff which commoners know as basic sense of course. Think what the knight must have heard outside his tent must be sniggers of laughter.
Well all are just tales taken from a pinch of salt. Oh yah, the holy grail of eternal youth might exist. Cheers.