520 is the number for miracle to happen. Whenever you have unresolved problem or when you need transformation immediately, 520 will work. For example, after the exam is over 520 will work, as the student needs a miracle, may be in the form of getting an engineering seat.
My son got an engineering seat: http://wp.me/ptUDl-6D
A complacent student, who is doing his 10th standard, thinks if he gets 45 marks then it is enough. He needs to do Fire Mudra (to get better results).
Keep the picture of Dolphin to relax when you are in tension, for example, to handle your exam tension. This doesn’t mean you don’t prepare for the exam. You can use the circle technique for the concerned student.