How do you plan the descent in emergency landing practice?

Do you experienced pilots just have a sixth sense about how to get the
aircraft exactly where it needs to be? Is it something you consciously
analyze throughout the descent or just instinctlvely do?

It helps to know the typical field size in your area. Then you could
think "this is my intended touchdown point, I want to be two fields to
a side and three fields behind it, and see it at an angle of, say, 40
degrees".

Mind you, I have never flown power, and I am not exactly experienced
either :-)

Bartek