"Then cometh Simon Peter... and went into the sepulchre, and saw the linen cloths lying, and the napkin that had been about his head... Then that other disciple also went in... and he saw, and believed. (Jn 20: 1-9).
J G Tasan
I just read about the explanation on the folded napkin and its relation to the Jewish (Judaean ?) ye-olde tradition of having a meal.

I need further enlightenment; so, do correct me if I’m wrong:
John the Apostle – in John 20: 8 – when he saw that folded napkin – had an understanding that our Lord Jesus has indeed risen from the dead and will soon meet up with His disciples in Galilee!
Regina caeli, laetare, alleluia; Quia quem meruisti portare, alleluia, Resurrexit, sicut dixit, alleluia: Ora pro nobis Deum, alleluia. Queen of heaven, rejoice, alleluia The Son you merited to bear, Has risen as He said, alleluia. Pray for us to God, alleluia.