"Prayer is the weapon of a believer." - Muhammad (saw)
Prayer is the act of actualizing one's wants through the divine powers present within. There is of course a scientific explanation to this act. Essentially prayer is 'guided brain waves.' Just as the dimension of knowledge transforms into energy and the quantum field to form the universe, the wants and desires of consciousness emanate from the dimension of knowledge to reveal themselves as the wants and desires of man and become actualized through the densification of guided brain waves. Due to this, the stronger the concentration level, the faster the response will be to the prayer.
"And he who turns away from My dhikr (the absolute reality of which I have reminded him), indeed, he will have a restricted life (limited by the conditions of his body and mind), and We will resurrect him as blind in the period of Doomsday." Quran 20:124
Since only a very small percentage of the brain is employed while a large part of brain capacity remains unused, dhikr allows the activation of this larger percentage.
The bio-electrical energy produced in specific regions in the brain via dhikr spreads to other regions and activates the dormant cells thereby increasing brain activity. Whatever the dhikr is about, the frequency corresponding to that meaning is emanated to the cells and thus brain capacity relevant to that particular meaning is increased.