Adoration is the first attitude of man acknowledging that he is a creature before his Creator. It exalts the greatness of the Lord who made us and the almighty power of the Savior who sets us free from evil. Adoration is homage of the spirit to the "King of Glory," respectful silence in the presence of the "ever greater" God. Adoration of the thrice-holy and sovereign God of love blends with humility and gives assurance to our supplications.
Source: Catechism of the Catholic Church (Vatican.va)