In the common teaching of Mariologists, one of the Ten Principal Virtues of the Blessed Virgin Mary is Angelic Sweetness. Such is the virtue that qualifies her to be called a "sweetheart" of God and man. Yes, Mary is sweet, for her heart bears no envy, neither does it harbor any hatred, nor tame jealousy and wickedness. Rather her heart is filled with aroma of love. The present work is the volume 2 of the author's INVITATION TO HOLINESS SERIES. It's aim is to draw the reader to love the Holy Spirit and Mary by an in depth union with them - a union achieved in prayer. Hence, one sees a "koinonia" (union) between Pneumatology (Theology of the Holy Spirit) and Mariology (Theology of the Virgin Mary), for both cannot be separated. Various titles accorded to them by great Saints and theologians have been selected by the author in composing these prayers. While the prayers to Mary are 31 in number to lead one through the month in conversing with her, the ones to the Holy Spirit are 9 in number to prepare for Pentecost Solemnity, as well as to be said at any other time of one's choice. The work is also available in Russian translation. The author dedicates it to Our Lady of Fatima.