The thoughts that we think have an impact on the whole universe every second of every day. Our thoughts are very powerful. They can either create or destroy your universe. Your mind is always transmitting signals to the Universe. You might think that it is not that powerful yet it is.
During the visualisation, the crucial thing is that you sense the emotion of having that money in your hands. Because when you experience the feeling of having money, your emotions move higher, you are vibrating highly. And when your vibration is high, it is just a matter of time when the Universe will send you the thing you thought about in your visualisation.