Can you walk me through the stages of creation, starting from the expressible Brahman?

According to the teachings presented in Chapter 50, the creation process begins when the formless Brahman becomes 'qualified' by Avidya (ignorance), making it expressible as 'Sat' (Existence). From this expressible Brahman, the Unmanifest (Avyakta) emerges. The cosmic cascade continues from there: the Great Principle (Mahat-tattva) arises from the Unmanifest, and egoism is born within it. Subsequently, the five subtle elements (Tanmatras) form within the ego, and from them, the five great elements are born. It is from the womb of these five great elements that the entire physical world comes into being, as a manifestation of Avidya-Maya.