Then occurs a dramatically effective change of scene. The scenery becomes a panorama drawn off toward the right, and as _Parsifal_ and _Gurnemanz_ face toward the left they appear to be walking in that direction. The forest disappears; a cave opens in rocky cliffs and conceals the two; they are then seen again in sloping passages which they appear to ascend. Long sustained trombone notes softly swell; approaching peals of bells are heard. At last they arrive at a mighty hall which loses itself overhead in a high vaulted dome, down from which alone the light streams in.

The change of scene is ushered in by the solemn =Bell Motive=, which is the basis of the powerful orchestral interlude accompanying the panorama, and also of the scene in the hall of the Grail Castle.

The Complete Opera Book — Part 189

As the communion, which is soon to be celebrated, is broken in upon by the violent grief and contrition of _Amfortas_, so the majestic sweep of this symphony is interrupted by the agonized =Motive of Contrition=, which graphically portrays the spiritual suffering of the _King_.

The Complete Opera Book — Part 189

This subtly suggests the Elegiac Motive and the Motive of Amfortas's Suffering, but in greatly intensified degrees. For it is like an outcry of torture that affects both body and soul.

The Complete Opera Book — Part 189

With the Motive of the Sacrament resounding solemnly upon the trombones, followed by the Bell Motive, sonorous and powerful, _Gurnemanz_ and _Parsifal_ enter the hall, the old knight giving the youth a position from which he can observe the proceedings. From the deep colonnades on either side in the rear the knights issue, march with stately tread, and arrange themselves at the horseshoe-shaped table, which incloses a raised couch. Then, while the orchestra plays a solemn processional based on the Bell Motive, they intone the chorus: "To the last love feast." After the first verse a line of pages crosses the stage and ascend into the dome. The graceful interlude here is based on the Bell Motive.

The chorus of knights closes with a glorious outburst of the Grail Motive as _Amfortas_ is borne in, preceded by pages who bear the covered Grail. The _King_ is lifted upon the couch and the holy vessel is placed upon the stone table in front of it. When the Grail Motive has died away amid the pealing of the bells, the youths in the gallery below the dome sing a chorus of penitence based upon the Motive of Contrition. Then the Motive of Faith floats down from the dome as an unaccompanied chorus for boys' voices--a passage of ethereal beauty--the orchestra whispering a brief postludium like a faint echo. This is, when sung as it was at Bayreuth, where I heard the first performance of "Parsifal" in 1882, the most exquisite effect of the whole score. For spirituality it is unsurpassed. It is an absolutely perfect example of religious music--a beautiful melody without the slightest worldly taint.