I'm sure others will provide a link.
The way a gent who worked with Lennie Cardinele told me, it's around 5 yards, eye level and you "run the shot"
Nothing about a target..it's blank bale...
Focus on how t he grip feels in your hand, where you put pressure on the grip...then your fingers on the string...how you load what fingers with what pressure, then your draw, using and focusing on back tension, then hitting your anchor... and without consciously "releasing" increase your draw or tighten your back muscles and "pull thru" till the arrow is gone...
Then there is another stage he called the "Bridge"... where you shoot at 5 yards, 10 yards, 15 and at each yardage, if you ONCE fail to go thru "Running your shot" and start to focus on the aiming, you go back and start over/
Tedious! But I did it regularly for a few months, and then when I shot, I wasn't trying to hit a target, but to execute my shot properly...
I increased my draw 3/4", and amazingly (to me) I shot better!
YMMV... and others might sophisticate the above a lot for you or provide the requested "LINK"