 Those workers didnt know what time that boss was going to come home. He might come after the sun goes down, or he might come in the middle of the night, or he might come as the birds call out in the morning, or he might come back after the sun comes up. So those workers have to be ready all the time. You are like those workers in that picture story, and I am like that boss. You dont know what time I will come back here, and you have to be ready for me all the time. So you have to keep on looking out for me, like that guard at the gate has to keep on looking out. Dont get lazy. 