It means to set apart for a purpose. So our prayer time should include in the first few moments some time to set apart God's name as the object of our worship. During these moments our sole purpose should be to bring God glory with our words. So the first section on our 'prayer clock' should be praise. It is vocal adoration of God.
Adoration is the act of rendering divine honor, esteem, and love.
It is derived from the ancient expression that meant 'to apply the hand to the mouth' or 'to kiss the hand'. It certain countries the kiss of the hand is still a symbol of deep respect and submission. The act of vocal adoration is important because it implies that we acknowledge God as God. Only praise puts God in His rightful position at the very outset of our praying. In praising Him we declare His sovereignty and recognize His nature and power.