“Fanaticism consists in redoubling your effort when you have forgotten your aim”

Simplified Meaning:

When you're so obsessed with something that you just keep trying harder and harder without remembering why you started, that's what fanaticism is. Imagine you're training for a marathon. A regular person would follow a plan to prepare for the race day. But a fanatic would just keep running and exercising more and more, even if it hurts them, and they might forget that their goal was to complete the marathon, not to train without end. If you decide to work extremely hard on a project at school but don't stop to think about the main goal of the project, you might end up with a lot of effort put into things that don’t even help you achieve the main goal. It’s like building a house and spending all your time making the roof really fancy while forgetting to build strong walls—the roof won't matter if the house falls down. This saying reminds us that it's important to remember our goals. It suggests we should work hard, but we also need to stay focused on what really matters. Otherwise, you might waste your time and energy on things that don’t help you reach your goal.