The feast of the Sacred Heart occurs 19 days after Pentecost.

Great Mercy and Forgiveness comes to those who recite the Chaplet of Divine Mercy.

Divine Mercy Video

I believe in one God, the Father almighty, maker of heaven and earth, of all things visible and invisible.  I believe in one Lord Jesus Christ, the Only Begotten Son of God, born of the Father before all ages.  God from God, Light from Light, true God from true God, begotten, not made, consubstantial with the Father; through him all things were made.  For us men and for our salvation he came down from heaven, and by the Holy Spirit, was incarnate of the Virgin Mary, and became man.  For our sake he was crucified under Pontius Pilate, he suffered death and was buried, and rose again on the third day in accordance with the Scriptures.  He ascended into heaven and is seated at the right hand of the Father.  He will come again in glory to judge the living and the dead and his kingdom will have no end.  I believe in the Holy Spirit, the Lord, the giver of life, who proceeds from the Father and the Son, who with the Father and the Son is adored and glorified, who has spoken through the prophets.  I believe in one, holy, catholic and apostolic Church.  I confess one Baptism for the forgiveness of sins and I look forward to the resurrection of the dead and the life of the world to come. Amen.

I believe in God, the Father almighty, Creator of heaven and earth, and in Jesus Christ, his only Son, our Lord, who was conceived by the Holy Spirit born of the Virgin Mary, suffered under Pontius Pilate, was crucified, died and was buried.  He descended into hell; on the third day he rose again from the dead; he ascended into heaven, and is seated at the right hand of God the Father almighty; from there he will come to judge the living and the dead.  I believe in the Holy Spirit, the holy catholic Church, the communion of saints, the forgiveness of sins, the resurrection of the body, and life everlasting. Amen.

My Jesus, I believe that You are present in the Most Holy Sacrament.
I love You above all things, and I desire to receive You into my soul.
Since I cannot at this moment receive You sacramentally,
come at least spiritually into my heart. 
I embrace You as if You were already there and unite myself wholly to You.
Never permit me to be separated from You.

O Holy Spirit, beloved of my
soul, I adore You.

Enlighten me, guide me,
strengthen me, and console me.

Tell me what I should do, give
me Your orders.

I promise to submit myself to all
that You desire of me,

and to accept all that You permit
to happen to me.

Let me only know Your will.
Amen.

O my Jesus, forgive us our sins, save us from the fires of hell, lead all souls to heaven, especially those who are in most need of Thy mercy.

O my God, I am heartily sorry for having offended thee and I detest all my sins, because I dread the loss of heaven and the pains of hell, but most of all because they offend thee, my God, who are all good and deserving of all my love. I firmly resolve, with the help of thy grace, to confess my sins, to do penance, and to amend my life.

Hail, Holy Queen, Mother of mercy, our life, our sweetness, and our hope. To thee do we cry, poor banished children of Eve. To thee do we send up our sighs, mourning and weeping in this vale of tears. Turn then, most gracious advocate, thine eyes of mercy towards us and after this, our exile, show unto us the blessed fruit of thy womb, Jesus. O clement, O loving, O sweet Virgin Mary. V. Pray for us, O holy Mother of God. R. That we may be made worthy of the promises of Christ.

http://www.trinitarians.org/prayer/mike.htm