this type of magic works. well, it did for me in the past
its more like manifestation magic, but the affirmation magic term can also work.
i think one has to be really specific in this type of ritual: like you said "i want to see a complete orange cat, passing the street across, by 8pm"
now if you were to analyze this situation, you actually manifest the said cat, by the mentioned time.. but if you leave out*passing the street across" you might see the picture of the cat, or you will see it in the tree, or at some window - the result will be ambiguous because the request is not very specific either.