Practice becomes a routine.
Routine is boring
Boredom lacks meaning.
We avoid doing what's meaningless.
We stop practicing playing the organ because of this.
All our efforts, all our time spent at the instrument flies out of the window. Progress stops, regret sneaks in, we start asking ourselves, "why did I start playing the organ in the first place?"
But we can turn that around.
Ask not what can organ playing do to you, but what can you do through organ playing to others.
Once you've done this, you're on a mission.
Then you can't get enough of practice.