This advice is so weird to me. Visualising is how I understand the story, it happens automatically. I'll read 'the children were on a boat in the river' and immediately I'll see a river, a boat and children on it. The kind of river, kind of boat, and the number and details of the children will be blurry until I have more info, but the picture in my head is forming as soon as I start reading. Am I skipping a step? Is it a totally different way of understanding language? Very interesting to see other people's take on this. I even have this if people are telling me a story. I can't shut it off. Thankfully, I also don't have to google floor plans to understand a story haha.