When you take a small stone and drop it into a well, waves form and spread out and cover almost the entire surface of the water.
They expand so far as to become invisible to your sight. In the same way, a small thought in your mind, like the stone dropped into the well, produces disturbances that pervade the whole mind and from there pervade the whole body. The entire body is affected by the nature of the thought. Your eyes seek such sights as prompted by the thoughts.Your hands perform acts of similar nature under the influence of the thought waves. Similarly, your legs are affected and you go to such places as prompted by the thoughts in your mind; therefore, you should cultivate pure and sacred thoughts.

-Sathya Sai Speaks, Vol.XXXIII.