The fourth means by which we can lessen our time in Purgatory, or avoid it altogether, is by frequent Confession, Communion and daily assistance at Mass. Confession applies to our souls the Precious Blood of Christ, wipes out our sins, gives us light to see their malice, fills us with horror of sin and, above all, it gives us strength to avoid it.
In Holy Communion we receive the God of infinite mercy and love, the God of all sanctity who comes expressly to pardon our sins and helps us to sin no more. (Of course, if we have committed one or more mortal sins we must first receive pardon in Confession.) He visited the house of Zaccheus once, and in the one visit Zaccheus obtained complete pardon of all his sins.
How is it possible that the same God of goodness and sweetness can come, not into our houses but into our very hearts in Holy Communion and not give us the same and even greater graces. He visited Zaccheus once, He visits us every day if we allow Him. Many, alas, never feel, never grasp the immense joys and consolation of Holy Communion.
The Mass is identical with the Sacrifice of Calvary, in its essence, in its value, in the graces it gives. The Sacrifice of Calvary was sufficient to save all the world, millions and million of souls, and was also sufficient to save countless other sinful worlds had they existed. By assisting at Mass we can apply all these oceans of graces to our own souls, and that not once, but every day.
Let us go to Mass and Holy Communion every day. We can do nothing better. One day with Mass and Communion is worth a hundred without them.
Source: How to avoid Purgatory. Father Paul O'Sullivan