The Sacrament of Reconciliation and Penance
Jesus' words to Sister Faustina:
When you go to Confession, to this fountain of My mercy, the Blood and
Water which came forth from My Heart always flow down upon your soul
and ennoble it. Every time you go to Confession, immerse yourself
entirely in My mercy, with great trust, so that I may pour the bounty
of My grace upon your soul. When you approach the confessional, know
this, that I Myself am waiting there for you. I am only hidden by the
priest, but I Myself act in your soul. Here the misery of the soul
meets the God of mercy. Tell souls that from this fount of mercy souls
draw graces solely with the vessel of trust. If their trust is great,
there is no limit to My generosity. The torrents of grace inundate
humble souls. The proud remain always in poverty and misery, because My
grace turns away from them to humble souls (1602).
Tell souls where they are to look for solace; that is, in the Tribunal
of Mercy. There the greatest miracles take place (and) are incessantly
repeated.

<>To avail oneself of this miracle, it is not necessary to go
on a great pilgrimage or to carry out some external ceremony; it
suffices to come with faith to the feet of My representative and to
reveal to him one's misery and the miracle of Divine Mercy will be
fully demonstrated. Were a soul like a decaying corpse so that from a
human standpoint, there would be no (hope of) restoration and
everything would already be lost, it is not so with God. The miracle of
Divine Mercy restores that soul in full. Oh, how miserable are those
who do not take advantage of the miracle of God's mercy! You will call
out in vain, but it will be too late (1448).
Holy Communion
The graces Our Lord has prepared for the Feast of Mercy are
connected with full participation in Holy Mass. This includes receiving
Holy Communion, to which the promise of complete forgiveness of sins
and punishment is attached.
Jesus' words to Sister Faustina:
I desire to unite Myself with human
souls . . . When I come to a human heart in Holy Communion, My hands
are full of all kinds of graces which I want to give to the soul. But
souls do not even pay any attention to Me, they leave Me to Myself and
busy themselves with other things. Oh, how sad I am that souls do not
recognize Love! (1385).
Oh, how painful it is to Me that souls
so seldom unite themselves to Me in Holy Communion. I wait for souls,
and they are indifferent toward Me. I love them tenderly and sincerely,
and they distrust Me. I want to lavish My graces on them, and they do
not want to accept them. They treat Me as a dead object, whereas My
Heart is full of love and mercy (1447).
Holy Communion in the Life of Sister Faustina
The most solemn moment of my life is the
moment when I receive Holy Communion. I long for each Holy Communion,
and for every Holy Communion I give thanks to the Most Holy Trinity
(1804).
Today, I prepare for the coming of the King.
What am I, and Who art Thou, O Lord,
King of eternal glory? O my heart, are you aware of Who is coming to
you today? Yes, I know, but --- strangely --- I am not able to grasp
it. Oh, if He were just a king, but He is the King of kings, the Lord
of lords. Before Him, all power and dominion tremble. He is coming to
my heart today . . .
I hear Him approaching. I go out to meet Him and invite Him. When He
entered the dwelling of my heart, it was filled with such reverence
that it fainted with fear, falling at His feet. Jesus gives her His
hand and graciously permits her to take her place beside Him. He
reassures her saying, See, I have left My heavenly throne to become
united with you. What you see is just a tiny part and already your soul
swoons with love. How amazed will your heart be when you see Me in all
My glory. But I want to tell you that eternal life must begin already
here on earth through Holy Communion. Each Holy Communion makes you
more capable of communing with God throughout eternity (1810).