As the apostle wrote, "we were all given to drink of one Spirit" ( 1 Cor 12:13). The Holy Spirit is God's life-giving breath. Receiving our Lord in communion happens by the power of the Holy Spirit. Being forgiven our sins in confession is effected by the power of the Holy Spirit. Marriages are not just made sacramental, but become sacraments, that is, visible and tangible signs of Christ's presence in and for the world, by the Spirit's power. Too often we take our cue from the world, seeing the gifts of the Spirit only in those who stand out in some way, who are good singers, good preachers, good teachers, gifted painters, able to write well, articulate, good looking, etc. This is to be mislead and often leads to being deceived and results in many leaving the faith. Being drawn this way builds up the egos of the ones who possess these things and usually has bad results.
The gifts of the Holy Spirit are wisdom, understanding, knowledge, counsel, fortitude, piety, and fear of the Lord. The fruits these gifts bear in the lives of Spirit-filled people are not necessarily things like speaking in tongues, prophesying, healing, etc., etc. The fruits of the Spirit are laid out by St. Paul in his Letter to the Galatians: "the fruit of the Spirit is love, joy, peace, patience, kindness, generosity, faithfulness, gentleness, self-control" (5:22-23). While it is possible to utter the words "Jesus is Lord" in an insincere, or even joking and mocking manner, it is impossible to truly profess Him as Lord except by the power of the Holy Spirit. The evidence that Jesus is Lord of your life is your manner of living, whether the Spirit is bearing fruit in you. Jesus said,
By their fruits you will know them. Do people pick grapes from thornbushes, or figs from thistles?I want to end with a few stanzas from the Sequence for Mass During the Day on Pentecost, the Veni, Sancte Spiritus:
Just so, every good tree bears good fruit, and a rotten tree bears bad fruit.
A good tree cannot bear bad fruit, nor can a rotten tree bear good fruit.
Every tree that does not bear good fruit will be cut down and thrown into the fire.
So by their fruits you will know them (Matt 7:16-20)
O most blessed Light divine,
Shine within these hearts of yours,
And our inmost being fill!
Where you are not, we have naught,
Nothing good in deed or thought,
Nothing free from taint of ill.
Heal our wounds, our strength renew;
On our dryness pour your dew;
Wash the stains of guilt away
Bend the stubborn heart and will;
Melt the frozen, warm the chill;
Guide the steps that go astray.