The cards are just acting like a conduit to our subconscious and giving us ideas and answers we may not have thought of without the help of the cards.
I’d see these methods as a seed for inspiration. If these readings have any connection to future outcomes, I’d say your thoughts affect the universe during the reading and not the other way around.
I think that's the million-dollar question.
Is it the universe affecting us or our thoughts affecting the universe?
A good reason to always be mindful of your thoughts as well.