"Kissako" is one of Buddha's teachings.
When you are very worried or obsessed about your trouble, you can not see anything else but your trouble. You focus on one thing which seems too hard to solve, and you don't know what to do.
In such a time of being at a loss, why don't you have a cup of tea? The cup of tea will surely relax you and make you realize there must be a way to conquer your trouble or it may not be as serious as you think.
When I walked pass him, I thought I heard his voice "Why don't you have a cup of tea?"