So imagine you have a really close friend. You guys do everything together, and sometimes you even finish each other's sentences. Well, in the world of Islam, there's something called a "wali sanga," which is kind of like having a really, really close friend, but it's between a Muslim and their spiritual leader or teacher.
See, in Islam, there are people who are really knowledgeable about the religion, and they can help guide other people on how to be good Muslims. These people are called "wali" or "saints." And when they become really close with another Muslim, they become their "wali sanga."
Being a wali sanga is important because it means that the spiritual leader or teacher can give advice and guidance to the Muslim follower, just like a best friend would. It also means that the follower can trust their wali sanga to help them make good choices and follow the teachings of Islam.
So basically, a wali sanga is like a really close friendship between a Muslim and their spiritual leader or teacher, where they help each other be the best Muslims they can be.