198 This was the origin of her Act of Oblation, not to God’s justice but to his merciful love. “I offer myself as a victim of holocaust to your merciful love, asking you to consume me incessantly, allowing the waves of infinite tenderness shut up within you to overflow into my soul, and that thus I may become a martyr of your love”. It is important to realize that, for Therese, this was not only about allowing the heart of Christ to fill her heart, through her complete trust, with the beauty of his love, but also about letting that love, through her life, spread to others and thus transform the world. Again, in her words, “In the heart of the Church, my Mother, I shall be love… and thus my dream will be realized”. The two aspects were inseparably united.
Source: Dilexit Nos (Vatican.va)