I have swept out all "garbage" and dust from both my house and my mind for this week. I washed every tile of floors and wiped all the windows of rooms. I also brushed floors from morning to noon. After noon angelus, I went back to my desk and began reading a book written by St. Juan de la Cruz. I materialized a model of an ant behavior into a vision that describes density-independent traffic flow in swarm biological systems. I must cast it away from my mind. Otherwise, I would not go forward for the next research. Sweeping everything I don't need anymore allows me to think about a next step. Today, I have done it. It happens that today is the day of Devotion to the Sacred Heart of Jesus. We don't have a mass today, but we pray home for Our Father.