Guitar instructor Sean Daniel presented an interesting clip focused on the power of volume pedal.
The musician explained (transcribed by UG):
"You can start incorporating volume swells into your playing. I can hit a chord, and as I bring the pedal down, it engages it.
"What it does is - you're eliminating the attack of your instrument. If you attack first, you can kind of blend in the sustain.
"But you can do a lot more than that. I think that's kind of where it brings in how it interacts with other pedals.
"As soon as you start thinking of a volume pedal as a way to control the amount of signal you're feeding into other pedals or an amp, then it really opens up a whole another world of what you can do with it."
You can check out the specific examples in the embedded player below.