Dialectical logic knows how to use the three brains in balance, with wisdom and harmony, in relation to the impressions of life.
Dialectical logic does not forgo the use of the intellectual brain. It merely knows how to use the intellect in its proper place.
You develop dialectic logic through meditation on your experiences, understanding the relationship between personal states and external events, the three brains, the transformation of impressions, ethical behavior, concentration and imagination, etc.
As you can see, this is not easy. It is an acquired skill, developed over many years. You will recognize such awakened states and clarified understandings of the mind through trial and error.
Understanding, comprehension, and intelligence, alongside imagination, must replaced reasoning.
We can understand the solution of a problem without having to reason. This occurs when the mind is receptive, not active. The consciousness must be active and the personality and ego passive. This is intuitive logic, intuition, comprehension.
Learn to separate the smoke from the flames.
Having a solar mental body does not guarantee one will know how to master dialectical logic. Even Nietzsche had a solar mental body, but he degenerated into lunacy.
Learn to comprehend your ego and its mistakes, so that you do not reason as an animal, but as a human being.
As for Emmanuel Kant, he had some strong insights, but this does not mean he was awakened in Dianoia. He perceived the limitations of his mind, but firmly believed it was impossible to see the truth behind things. This was his fundamental agnostic mistake.
For thirty years I sought God. But when I looked carefully I found that in reality God was the seeker and I the sought. -Bayazid al-Bastami