What is contemplative prayer? St. Teresa answers: "Contemplative prayer [oracion mental] in my opinion is nothing else than a close sharing between friends; it means taking time frequently to be alone with him who we know loves us."
Contemplative prayer seeks him "whom my soul loves." It is Jesus, and in him, the Father. We seek him, because to desire him is always the beginning of love, and we seek him in that pure faith which causes us to be born of him and to live in him. In this inner prayer we can still meditate, but our attention is fixed on the Lord himself.
Source: Catechism of the Catholic Church (Vatican.va)