When the condition of our meetings is normal, the Lord Jesus is present.
We must have the assurance that the Lord Jesus is also singing and praising with us.
If we have this assurance, our singing and praising will be not only like the sound of many waters and loud like thunder but also beautiful and melodic.
We must exercise to let the Lord sing hymns of praise in us.
(The Church Life in Spirit and Truthfulness, Chapter 2)