From our friends at Sancta Missa:Why is this day called Holy Saturday?
Because on this day Jesus, the Holy of holies, rested in the sepulchre, and because the Church today blesses the new fire, the Easter candle, and the baptismal water.
Why is fire struck anew, blessed, and the lamps and candles in the Church lighted from it?
In ancient times it was customary to strike a new fire every day, bless it, and light the candles from it, and later this was done every Saturday; in the eleventh century this ceremony was restricted to Holy Saturday. The fire is struck from a stone to indicate, that Christ is the light of the world, and the Stone which the Jews rejected has now become the Corner stone of His Church; (Ps. CXVII. 22.) that the divine Son, the light of the world, was apparently extinguished at His death, but at His resurrection shone anew; that all those who witness this ceremony today be spiritually enlightened hereafter. This fire is blessed, because the Church blesses everything that is used for divine service, and because the light and fire represent Christ, who brought the fire of love upon earth with which to enkindle our hearts. Luke XII. 49.)
What is represented by the triple candle? (read full text here)
