The mind fluctuates but we cannot do anything about that but everything is overcome by devotional service. Some people say that spiritual life is a struggle. No, that is not the problem. The problem is that we don’t do enough service. The gap between service gives rise to lust, anger and greed. How difficult it is to overcome envy!? So many difficulties and we struggle to overcome them. The solution is always to do more service and more chanting. Developing attachment to service and chanting is key.