is this just a concept?

In Give praise to God I notice that there are a few places between pages 96 and 97 talking about how Jesus is singing the fathers praise, and also how he sings with us in worship as the Holy spirit helps lead us in song.  Is this an example of what we're to visualize to try to connect more with the scripture and with our worship? Or is there something special about this particular analogy that I'm just not connecting with? I'd never heard of this concept before so I'm curious to learn more about it.