Me and the mark of Vishnu

Its time to write something about the sectarian mark on my forehead. I thought it would be difficult to put it in simpler words, however, thanks to google to get this one. The article is written simply that everyone will be able to understand. More details about SriVaishnavam can be found here. You can find a lot of related resources here. I will try to answer all your questions, if you have any. ;-)