Holy Saturday (Latin: Sabbatum Sanctum), also known as Great and Holy Saturday (also Holy and Great Saturday), the Great Sabbath, Hallelujah Saturday (in Portugal and Brazil), Saturday of the Glory, Sabado de Gloria, and Black Saturday or Easter Eve, and called "Joyous Saturday", "the Saturday of Light", and "Mega Sabbatun" among Coptic Christians, is the final day of Holy Week, between Good Friday and Easter Sunday, when Christians prepare for the latter. The day commemorates the Harrowing of Hell while Jesus Christ's body lay in the tomb. Christians of the Catholic, Lutheran, Methodist, Anglican and Reformed denominations begin the celebration of the Easter Vigil service on Holy Saturday, which provides a transition to the season of Eastertide; in the Moravian Christian tradition, graves