braking power: having jhāna, and not. (illustrated): comparing Real Buddha's jhāna, Vism., Brahm, dry insight

 
Here's the difference between a dry insight meditator without jhāna,
and one with (genuine Buddha's EBT jhāna).
Let's say both meditators are skilled in watching their mind and body moment to moment.
The difference is, the jhāna meditator has a much finer granularity, detail, precision and control,
due to the power of the pacification and jhāna power. 
In a short duration of time, say 2 seconds,
The jhāna meditator has much more power and control to act, perhaps hundreds of times more opportunities to act in that 2 second span.
Suppose both meditators were speeding their cars in a suburban neighborhood,
and a person suddenly appeared on the crosswalk at an intersection. 

Here's what would happen with the dry insight meditator

Their samādhi is a Chevrolet Chevette, one of the most reviled cars in automotive history.
The meditator saw the cart, wanted to avoid it, acted to avoid it, hit the brakes, but the car wouldn't respond quickly enough.
Tires are weak, poor braking power and control, and what a disaster. 
Luckily the pedestrian didn't get hit. 

Here's an EBT jhāna meditator. 

Let's say he has the same sati skill as the dry insighter.
Let's say they notice the pedestrian at the same time,
issue a volition to act to stop car and hit brakes at the same time.
The difference is, the jhāna meditator is driving a super car that brakes super fast.
He hits the brakes, and the car stops inches away from hitting the woman and her son.
That's the power of jhāna samādhi.
You think the thoughts you want to think,
you don't think the thoughts you don't want to think.
When you make up your mind to do something,
you do it with power, precision, and excellence.

Ajahn Brahm and Vism. redefined "jhāna" meditator

This meditator owns the same car as the genuine jhāna meditator, a ferrari super car, super fast and super braking power.

It's brand new, he's owned it for a few years, but it has zero miles on it.

He's never even turned on the ignition.

The car has never moved since it was bought and delivered to his home.

Does it have gas?

Does it even run right now? Who knows?

All he does is wash his car, buff it, wax it, admire how shiny it is,

and practice his disembodied frozen stupor (corrupt) "jhāna" in the driver's seat for hours at a time.

He doesn't having any driving skill, no driver's license.

Just the samatha skill to work a high paying but super repetitive and monotonous job for 10 hours a day to earn enough  to buy a really expensive super car.

He has less insight skill than the dry insighter, because he was taught that he needed to master samatha first before moving on to insight.

He's not allowed to turn the ignition and take his car off his driveway until Ajahn Brahm approves his nimitta being bright and shiny enough.

Following Ajahn Brahm's corrupt definition of samādhi as "stillness",

vitakka as "not thinking",

kāya as "not a physical body", 

He doesn't have any critical thinking skills because he's taught that thinking is bad, that you should try to be in a frozen disembodied stillness as much as possible.

How would he perform on the braking test on the cross walk?

He can't even drive a car yet, 

so at least we know the pedestrians are safe.

 

Conclusion

Be a genuine EBT (Early Buddhist Teaching)  jhāna meditator.

Not an LBT (Late Buddhist) redefined "jhāna" as in Visuddhimagga.

Not a corrupt "EBT" as redefined by Ajahn Brahm, Sujato, etc., which is just Vism. in disguise.