The four sides of the pyramid of being--thinking, feeling, doing, and intuiting--must be drawn together, properly developed, and held together in proper balance. The inclination to fragment the self is the inclination to follow the easiest path, not the needed path. The whole person needs both developing and balancing; part of it cannot be left safely in neglect while the other part is intensively cultivated.
The philosophic goal is to be spiritually aware in all parts of the psyche, with the complete life as the final result. The aspirant must engage the whole of his person in the work of self-illumination, and not merely a part of it. If only a piece of it is active in this work, only a piece can get illumined or inspired. Even meditation itself--so important for the awakening of intuition--is only a part, and a limited part, of the Quest. Wholeness must be the ideal, if the whole of the Overself's light is to be brought forth and shone down into every day's living, thinking, feeling, and being. Anything less yields a lesser result. And if the whole is not held properly, is unbalanced, it yields a distorted result.
-- Notebooks Category 20: What Is Philosophy? > Chapter 3 : Its Requirements > # 216