Is there anything as such as "Drishti" (bad eye), or is it a mere superstition?

“Eyes are the windows to one’s mind. We know that sound travels in air and that is how a word uttered reaches another person’s ears. Just like that, our thoughts have also the potential to travel. This is how some are able to read others minds. When someone comes to meet us, if he is jealous, that affects us. Similarly, if a Sadhu or a Saint comes to our place, his benign thoughts does good to us.

That is what we call as ‘drishti’. It could be either benign or malicious.