On the evening of Thursday, August 21, 1879, at about 8 o’clock, fifteen people, whose ages range from five to seventy-five and include men, women, teenagers, and children, witness what they state is an apparition of Our Lady, Saint Joseph, and Saint John the Evangelist at the south gable end of the local small parish church, the Church of Saint John the Baptist. Behind them and a little to the left of Saint John is a plain altar. On the altar is a cross and a lamb, a traditional image of Jesus as reflected in the religious phrase The Lamb of God, with adoring angels.
The Blessed Virgin Mary is described as being beautiful, standing a few feet above the ground. She wears a white cloak, hanging in full folds and fastened at the neck. Her crown appears of a golden brightness, of a deeper hue, than the striking whiteness of the robe she wears. The upper parts of the crown appear to be a series of sparkles, or glittering crosses. She is described as “deep in prayer,” with her eyes raised to heaven, her hands raised to the shoulders or a little higher, the palms inclined slightly to the shoulders.
Saint Joseph, also wearing white robes, stands on the Virgin’s right hand. His head is bent forward from the shoulders towards the Blessed Virgin. Saint John the Evangelist stands to the left of the Blessed Virgin. He is dressed in a long robe and wears a mitre. He is partly turned away from the other figures. He appears to be preaching and he holds open a large book in his left hand. To the left of St. John is an altar with a lamb on it. There is a cross standing on the altar behind the lamb.
Those who witness the apparition stand in the pouring rain for up to two hours reciting the Rosary, a series of traditional Catholic prayers. When the apparition begins there is good light, but although it then becomes very dark, witnesses can still see the figures very clearly – they appear to be the colour of a bright whitish light. The apparition does not flicker or move in any way. The witnesses report that the ground around the figures remains completely dry during the apparition although the wind is blowing from the south. Afterwards, however the ground at the gable becomes wet and the gable dark.
A number of cures and favours are associated with visitors to Our Lady of Knock’s Shrine and those who claim to have been cured here still leave crutches and sticks at the spot where the apparition is believed to have occurred.
Each Irish diocese makes an annual pilgrimage to the Marian Shrine and the nine-day Knock novena attracts ten thousand pilgrims every August.
While the original church still stands, a new Apparition chapel with statues of Our Lady, St. Joseph, the lamb, and St, John the Evangelist, has been built next to it. Knock Basilica is a separate building showing a tapestry of the apparition.