“Prayer is the raising of one’s mind and heart to God or the requesting of good things from God” (St. Therese of Lisieux, CCC 2559). God invites us into a relationship with Him that is both personal and communal. He speaks to us through His Son, Jesus Christ, the Word-made-flesh. Prayer is our response to God who is already speaking or, better yet, revealing Himself to us. Therefore, prayer is not merely an exchange of words, but it engages the whole person in a relationship with God the Father, through the Son, and in the Holy Spirit.
Various forms of prayer are presented in the Catechism of the Catholic Church (CCC 2623-2649). These various forms include prayer of bless or adoration, prayer of petition, prayer of intercession, prayer of thanksgiving, and prayer of praise.
Meditation is a Christian practice of prayer dating back to the early Church. As the Catechism states: “Meditation is above all a quest. The mind seeks to understand the why and how of the Christian life, in order to adhere and respond to what the Lord is asking.” By meditating on the Gospels, holy icons, liturgical texts, spiritual writings, or “the great book of creation,” we come to make our own that which is God’s. “To the extent that we are humble and faithful, we discover in meditation the movements that stir the heart and we are able to discern them. It is a question of acting truthfully in order to come into the light: “Lord, what do you want me to do?” (CCC 2705-2706). Meditation is an essential form of Christian prayer, especially for those who are seeking to answer the vocational question, “Lord, what do you want me to do?”
Spiritual reading of Sacred Scripture, especially the Gospels, is an important form of meditation. This spiritual reading is traditionally called lectio divina or divine reading. Lectio divina is prayer over the Scriptures.
If you need a resource with some Catholic prayers, see https://www.catholic.com/tract/common-catholic-prayers.