They will have to stop trying to visually see what they are doing and start feeling what they are doing with their body awareness for these techniques to work effectively. This means that if you cannot visualize very well and cannot actually see what you visualize, you are going to do very well indeed with these new techniques. Without exception, every person is capable of easily creating the most complex scenarios in their mind's eye. I have asked many people who have claimed they cannot visualize, if they ever fantasize or daydream or imagine things. These are one and the same ability.
Memory plays an important part with imagination.
If you have, after searching vainly for the item, you probably tried to recreate recent actions in your mind's eye to help remember where you lost the item. You would have replayed these actions in your mind's eye, going over your every step. Recreating actions and events like this is pure mind's eye imaging, the constructive use of imagination, based entirely upon memory. And everyone has the natural ability to do this whenever they want, perfectly and with no training at all. As you do this, take note of everything you do and see and feel along the way.