Why water always move to high to low concentration? ??

Dear student,
Please find below the answer:

Water always moves from high concentration to low concentration due to the concentration gradient. In the case of gradient, there occurs an imbalance that needs to be balanced. This balance can be achieved only when the concentration of water in each region will be the same and that occurs due to the flow of water from high concentration to low concentration.

Hope this clears your doubt.
Regards.