"A movement that we will to execute is never more than a represented movement, and appears in a different domain from that of the executed movement, which always takes place when the image is vivid enough"

Ernst Mach, an essential figure in the viewpoint of science and the study of understanding, provides an interesting viewpoint on human movement and cognition in this quote. The text recommends a double nature of human movement, emphasizing the difference between the psychological representation of motion and its actual physical execution.

First of all, "a motion that we will to carry out is never ever more than a represented motion" suggests that before any physical action occurs, there is a psychological conception or strategy of that movement. This lines up with the idea of motor images, where individuals can envision themselves performing a certain action with no corresponding movement. This representation is a cognitive procedure, showing that human action starts in the mind.

The next part, "and appears in a different domain from that of the executed motion", recommends the separation between mental cognition and physical action. "Domain" refers to various worlds; the cognitive vs. the physical. Thus, Mach seems to be asserting that the initial conception of motion exists in an abstract, cognitive area, distinct from the tangible world of physical actions.

Lastly, the phrase "which constantly takes place when the image is brilliant enough" presents the idea that the execution of motion depends on the clearness of the psychological representation. When our psychological visualization of the action is clear and detailed, it is more likely to translate into actual physical motion. This reflects the value of strong mental imagery in effectively carrying out actions, a concept frequently utilized in practices like sports and rehab, where visualization exercises are utilized to enhance physical performance and recovery.

Overall, Mach's quote encapsulates the interplay in between mind and body, highlighting the function of psychological representation as a precursor and factor of physical action. It highlights the intricacy of human movement as not merely a mechanical output, but a sophisticated procedure linked with cognitive functions.