When we see someone walk away from God, it is can be difficult to watch, and often there is nothing that we can do to prevent it from happening.
The good news is that we can always pray to God for the grace of the Holy Spirit to be poured upon those wandering souls.
Here is a prayer from Fr. Paul O’Sullivan’s book, The Holy Ghost.
O Holy Spirit,
let the might of your love be more and more felt in the hearts of humankind.
Let your light shine more and more
on souls that are wandering in the darkness far away from God.
Turn them to the lightgiving Heart of Jesus
and to the healing streams of his Precious Blood.
Strengthen the souls that love you;
perfect in them your seven gifts and your twelve fruits;
and so make them your temples here
that you may be adored by them for ever.