In Father Auriemma's little book, Affetti Scambievoli [Affetti Scam. p. 2. c. 3], we read of innumerable favors granted by the Mother of God to those who practised this most profitable devotion of often visiting her in her churches or before some image. We read of the graces which she granted in these visits to Saint Albert the Great, to the Abbot Rupert, to Father Suarez, especially when she obtained for them the gift of understanding, by which they afterwards became so renowned throughout the Church for their great learning: the graces which she granted to Saint John Berchmans of the Society of Jesus, who was in the daily habit of visiting Mary in a chapel of the Roman college; he declared that he renounced all earthly love, to love no other after God than the Most Blessed Virgin, and had written at the foot of the image of his beloved Lady: "I will never rest until I shall have obtained a tender love for my Mother."; the graces which she granted to St. Bernardine of Siena, who in his youth also went every day to visit her in a chapel near the city-gate
http://www.catholictradition.org/Eucharist/blessed-sacrament.htm
http://www.catholictradition.org/Eucharist/blessed-sacrament.htm