Prayer is to forge us into the likeness of the beloved, and thus it is bringing Christ to life in the believer. This is the mystery of prayer - bringing Christ to life in us, thus bringing Christ’s image of His Father to life in us. This is the Christian idea of centering, as a key ingredient for prayer, which means a focus on Christ to where it draws your whole being into Christ.
Colossians 3:4 - “When Christ, who is your life, appears, then you also will appear with him in glory.”
At some point in my life prayer became, not so much talking to, or reflecting on, meditating, contemplating for achieving union, to or with God..., yes all these things and more are part of prayer, but prayer became, Imitatio Christi - the imitation of Christ - a place within where my "I" in the here and now is continually being formed and reformed by God.
Here is beautiful gift on prayer from Sr Ruth Burrows:
"Prayer is not just one function in life, not even the most important function; it is life itself. We are truly alive, truly human, only when our whole life is prayer."
Sister Ruth is a Carmelite nun at Quidenham in Norfolk, England. She is the author of a number of bestselling books.