Lamrim is like a big book of instructions about how to be a good person and live a happy life. It was written a long time ago by a really wise person who wanted to help others find peace and happiness.
The book talks about lots of different things that can help you become a better person, like learning how to be kind to others, how to be honest, and how to make good choices. It also talks about how to control your thoughts and emotions, and how to find inner peace.
The book is divided into different sections or levels, with each level building on the one before it. Each level gives you different instructions to follow and things to think about, kind of like a game where you have to complete one level before moving on to the next.
Some people study and practice the teachings in the book for their whole lives, while others just pick and choose what they find helpful. But no matter how you use it, the book can help you become a better person and lead a happy and meaningful life.