Most of our prayers to God are directed to God the Father or to Jesus Christ. Christ told us, however, that He would send His Spirit to guide and guard us. Prayer to the Holy Spirit for spiritual growth is particularly appropriate.
This prayer, since it asks for a favor, is well suited for praying as a novena.
Prayer to the Holy Spirit for a Favor
O Holy Spirit, You are the Third Person of the Blessed Trinity. You are the Spirit of truth, love and holiness, proceeding from the Father and the Son, and equal to Them in all things. I adore You and love You with all my heart. Teach me to know and to seek God, by whom and for whom I was created. Fill my heart with a holy fear and a great love for Him. Give me compunction and patience, and do not let me fall into sin.
Make me a faithful follower of Jesus, an obedient child of the Church, and a help to my neighbor. Give me the grace to keep the commandments and to receive the sacraments worthily. Raise me to holiness in the state of life to which You have called me, and lead me through a happy death to everlasting life. Through Jesus Christ, our Lord.
Grant me also, O Holy Spirit, Giver of all good gifts, the special favor for which I ask [name the favor here], if it be for Your honor and glory and for my well being. Amen.
Glory Be, etc.