Those "intuitive apprehensions of the mind" is the imagined images, patterns, and motives that some epicureans like Philodemus, added after Epicurus era. This was all that food of philosophies by Hegel, Kant and Spinoza. The food that does not eliminate our hunger where is the false and where is the right.
They tried to connect the reality with the imagination of patterns. And the only they tried to do is to unite the rationalism with the empiricism,, but the result was that led the humanity in WARS.
From a latest work of my epicurean friend Dimitris Altas, that is a Dr. cardiologist.
Kant and Spinoza believed that starting from some fundamental principles such as mathematical axioms and logical principles along with innate ideas and only with "correct reason" one could acquire all possible Knowledge! In fact, Spinoza's rationality is absolute! He claims that human thought is capable of knowing God perfectly!
That is, it supports the logical approach of the metaphysical/supernatural. Nevertheless, Hegel argued that only with "correct reason" was it not only possible to understand human history, but also to predict its future course! This idea moved Karl Marx, who decided to use Hegel's Philosophy as a basis for his own theory, removing the metaphysical element with controversial results after maintaining its metaphysical determinism. Not even with Hegel's determinism did the shirt has been filled of what methodology we have to use for finding right conclusions. This shirt was still empty!
In the end, Immanuel Kant decided that if we found a way to combine Rationalism with Empiricism, there will be no end! But the unification of Empiricism with Rationalism seemed a bit like the unification of quantum mechanics with the theory of relativity! It may seem obvious to you, but in the field of Philosophy it is not! Correct calculus no longer had to be umbilical, but to analyze data from the experiences. But how does the raw data of the senses become experiences? Kant would have saved enough gray matter if he had been focused to the Epicurean Canon! Obviously, he did not do that! The menu may no longer have innate Ideas, but it had pre-installed innate molds, to which the mind adapted the raw data of the senses so that the right reason could process with them! He called the molds supervisions and categories in the context of a rather difficult and vague explanation with several metaphysical implications. Kant is considered the most important representative of German Philosophy who has always remained an Idealist, except Nietzsche.