Whether one meditates on an elaborate or concise version of creation stage, there are three main points: Clarity of form purifies attachment to the appearing object, recollecting the purity frees one from clinging to corporeality, and maintaining pride vanquishes clinging to ordinary self.
Important takeaway: "recollecting purity" does not mean remember some kind of pristine energy or identity. It means being able to see the conceptual models as conceptual models and purifying attachment to these concepts. E.g. "I hate myself," I can see that this self I believe is solid and object of entrenched aversion is actually empty. Also the "I" that is doing the hating is empty. This becomes clearer still when I develop a counterpoint vision of a self as a deity.
Tara visualization helps to develop that recognition of the fundamenta emptiness of all mental models.
