The deepest form of worship is praise and adoration to God for what He is. There are "no strings attached" to this kind of worship. When we Worship Unto The Lord, We are not worshipping Him for what we can get out of Him, or because of what He has done for us. Worshipping God for what He has done for us is thanksgiving. Our worship should include thanksgiving, but we must not forget to praise and adore Him because of what He is!