I would think (this is just a hypothesis, and one on a subjective matter, so it can't graduate to a theory) that it largely depends on how practiced a person is with visualization.
From what I've noticed with myself, is that the more that I meditate (I don't do mind-blanking meditations... they're very sensory filled) the clearer my dreams become. If I practice a visualization technique during the day, I'm quite likely to have a dream centered around another object, like my
anima is practicing the same visualization technique. (There is an article on wikipedia on animas, but I preffer Jeff Lilly's explanation and story more, which is why I linked to his blog.)
It's something to try, no? At the very least, it could be an interesting 30 day experiment.
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People often say that 'beauty is in the eye of the beholder,' and I say that the most liberating thing about beauty is realizing that you are the beholder. This empowers us to find beauty in places where others have not dared to look, including inside ourselves.
--Salma Hayek
My blog:
Adam's Peace