How will I come to know that I have become a saint ?

A person once asked a saint, “How will I come to know that I have become a saint?” The saint gave him an easy parameter, saying “Look at the hands of the watch and if you can keep your mind thoughtless even for one minute, you can conclude that you have attained sainthood.”  This makes it clear how difficult it is to keep the mind thoughtless even for a minute. – Tanuja Thakur