with my commentary below
Novena: Fifth Day
Today bring to Me THE SOULS OF THOSE WHO HAVE SEPARATED THEMSELVES FROM MY CHURCH, and immerse them in the ocean of My mercy. During My bitter Passion they tore at My Body and Heart, that is, My Church. As they return to unity with the Church, My wounds heal and in this way they alleviate My Passion (Diary, 1218).
My Prayer Response with St. Faustina:
Most Merciful Jesus, Goodness Itself, You do not refuse light to those who seek it of You. Receive into the abode of Your Most Compassionate Heart the souls of those who have separated themselves from Your Church. Draw them by Your light into the unity of the Church, and do not let them escape from the abode of Your Most Compassionate Heart; but bring it about that they, too, come to glorify the generosity of Your mercy (Diary, 1219).
I often notice that today, those who choose this path do so because they don't understand what the Church is. And by extension, they don't understand who Jesus Christ is. They leave because they think their favorite sin, the one they most enjoy doing, is unforgiveable. But in all cases, the real unforgiveable sin isn't the reason why they left, it is the *leaving* itself, for it cuts them off from Christ's mercy. Your favorite sin is but a single grain of salt dissolved into the ocean of mercy. The Church won't lie to you about that sin- they will tell you the truth about it- but in the end result, it is rather inconsequential in eternity, unless you cling to it and refuse to "Let Thy Will Be Done On Earth as it is In Heaven".