This morning I recalled many of the "stupid" things I did in my past. Those were the days when I did not know the Holy Spirit well. Now I know that God wants everything we do to be motivated by love. The stupid things I did before were all motivated by me with no concern for God.
Since the voice of the Spirit is always gentle, we must learn to listen carefully with our hearts. At any rate, the more we unite with the Lord (through receiving the Holy Eucharist and prayer), the more we become Christlike, and the clearer the promptings of the Holy Spirit will be to us. In time, doing God's will becomes our second nature ("our only nature" would be even better).