Some philosophical works do not build part by intelligible part to an intelligible whole.

They begin with a not-yet-intelligible whole (that is, an intelligible whole that has not yet become intelligible to the reader), and barge forward not-yet-intelligible-part by not-yet-intelligible-part, seemingly to nowhere — until the reader finally finds a way to understand it so whole, parts and the relationships that connect them suddenly and all-at-once become intelligible.

This understanding, however, cannot be conveyed explicitly. Certainly, there is an explicit understanding to be had, but it is a side-effect of understanding. The real understanding is tacit know-how that guides the use of concepts. The intellectual moves are the true substance of such philosophy.

In a sense, these works must be read forward but understood backwards. They are exercises in patience and anxiety tolerance. They are difficult.