In plain words
In the world, every fire has a set time to go out. Some kinds of fire never go out, however long it may be, and keep blazing up more and more. Today, within the seat of the heart in man's body, the fire of lust, the fire of anger, the fire of greed, the fire of infatuation, these four, have come together; and even while the heart is burning away through them, man does not notice; he does not understand his own life at all, forgets even the truth of how the house called the body wastes away, turns to soot and becomes charcoal, and keeps making many kinds of plans for living. When a snake has got into a house, no man at all will find the courage and daring to live in that house, or move about in it, or sleep in it. Only after he has caught or killed the snake that got in and thrown it outside does some peace come to him, and then it is natural for him to set about living in that house without fear. But in the house called our body, the poisonous snakes called the desires of the senses have got in, built their anthills, and are bringing forth many kinds of young and multiplying; and in such a state this man lives on in this house in peace, grinning happily, drawing up many kinds of plans for his future, and stays this bold. It is astonishing: is this simply the boldness of knowing, or the boldness of not knowing? Birth, life, change, or the various kinds of decline and destruction: all of them come to us through time. Through time itself night follows day and day follows night, each chasing the other. When it is day in Bhārata, it is night in America. On the globe, half appears to us as night and the other half as day. Within this earth, its halves themselves wear a dual form, that is, darkness in one half and light in the other half; while they teach our life this lesson, it is madness for us to imagine that our life is changeless, that our life is eternal, that our life is real.