The dirt in the human spirit is hard to clean. But if you keep cleaning, it can change and be purified. Without a doubt humans' spirit can be cleaned.
I am looking around me after the snow storm that filled our cities with slush and dirty roads. The city and the people are out cleaning their cars, streets, sidewalks and driveways. They could've just leave it the way it was after the snow, dirty and messy, yet they knew that leaving it like that, will transform their place of residence in a very unpleasant place to live.
Our soul is in many ways a muddy place that always gets dirty and uncleaned after the many storms that life throws at us. In order for us to get back in feeling alive we should clean our spirit from time to time. This begs the question: what can one do in order to clean his spirit?
My answer is: tune-up your existence, tune-up your life.