It's in you -
In this materialistic world, it's so hard to let go of anything with which you are accustomed with for a long time. 13 years now, didn't get exposed to anything, now with an opportunity to move on, it is unbelievably painful. When i left India, the guilt hit me on my flight from Madras to Bombay, I got sick and i don't remember anything during the flight other than how miserable it was. Now after a long time, its hitting me again!