Singing praises to God or worshiping him opens up a window to heaven. As your praise reaches the heart of God, it becomes a two way stream of communication. As you touch God with your praise, his Holy Spirit touches you and ministers to you. Praise and worship can also open the door to blessings from God.
We praise God because he is worthy of all praise. He is the maker of Heaven and earth and the entire universe. He has given us life and through his son has saved us from eternal damnation. He loves us completely despite of our short comings and sinful nature.
Probably the best examples of how to worship the Lord can be seen in the life and Psalms of King David.
God described David as a man after his own heart. David loved God and God loved David. David had a wonderful musical talent and regularly came before the Lord in songs of love and thanksgiving. He danced and played music to praise God. In (2 Sam 6:14-15) it says
And David danced before the LORD with all his might; and David was girded with a linen ephod. So David and all the house of Israel brought up the ark of the LORD with shouting, and with the sound of the trumpet. (KJV)
David...