Concept
Mahat-tattva, Pradhāna, and Prakṛti
Part of Devī-dhāma

The is the total material principle from which the cosmic manifestation develops. Pradhāna refers to unmanifest material nature in potential form, while is material nature functioning through the three : sattva, rajas, and tamas. These definitions follow the chart's own explanatory tradition; other and Sāṅkhya-adjacent texts sometimes draw the boundaries between these terms differently.
Shown below the boundary and around the causal-material region
The chart gives matter an origin and an internal structure so it can't be read as a second reality standing outside the divine order — even the causal principles sit inside the diagram, below the boundary, not beyond it.
Source: Śrīmad-Bhāgavatam; chart explanation · Direct scriptural supportThe chart is showing that matter has an origin and a structure; it is not an independent reality outside the divine order.