This prayer is very powerful to ask Mother Teresa of Calcutta for a grace

Saint Teresa of Calcutta,
you have allowed the trimmed love of Jesus on the Cross
to become a living flame within you,
so as to be for all light of His Love.
Get from the heart of Jesus (expose the grace for which we pray ..)
Teach me to let Jesus penetrate me
and take possession of my whole being, so completely,
that my life is also an irradiation of His light
and His love for others.
Amen

Immaculate Heart of Mary,
Because of our joy, pray for me.
Saint Teresa of Calcutta, pray for me.
"Jesus is my All in All"