Saint Faustina is a special gift that God of infinite mercy bestowed upon us in the beginning of the twentieth century. The present day world with its sins seems to have invited the anger of God.
Yet God is not willing to bring about a catastrophe to this world as He had destroyed it once in the beginning. God has been merciful to mankind and has used Saint Faustina as an agent to redeem the world. In order to reveal His plan of redemption, God appeared before her in the form of Divine Mercy and taught the Divine Mercy Devotion to the world through her.