Emotions and thoughts literally shape each other and cannot be separated. Emotions color meaning. Metaphors are an example as Lakov so aptly describes. Moreover, the emotional impact of any lesson or life experience may continue to reverberate long after the specific event that triggers it. Hence an appropriate emotional climate is indispensable to sound education.
Every brain simultaneously perceives and creates parts and wholes.
In a healthy person, both hemispheres interact in every activity, from art and computing to sales and accounting. The two brain doctrine is most useful for reminding us that the brain reduces information into parts and perceives holistically at the same time. The brain absorbs information of which it is directly aware, but it also directly absorbs information that lies beyond the immediate focus of attention. In fact it responds to the larger sensory context in which teaching and communication occur. Even the unconscious signals that reveal our own inner attitudes and beliefs have a powerful impact on students.