Today is the feast of All Souls. It is a day in which we remember those who have died before us and have gone to Purgatory. As the souls in Purgatory need to be cleansed before they can rejoice in the Kingdom of Heaven, it is our job here on Earth, to pray for them to better assist them in their purging.
Remember your deceased relatives and friends. Pray for them frequently. Have Masses said for them. As God has told us that we are not to judge, we must assume that all those who are deceased are in Purgatory. Unless the Church has stated otherwise, we can not assume anybody is in Heaven. We can not assume they are in Hell either. Therefore, we must pray for all the deceased.
Rest assured, if you pray for someone, and they are not in Purgatory for one reason or another, your prayers will be used for other souls in Purgatory. How blessed are we to be able to help and assist our brothers and sisters into getting to Heaven by the incredible power of our prayers.