7. Intrapersonal intelligence is the ability to be self-aware and explore emotions, goals and motivations. This perspective on the human condition is used by writers, philosophers, psychologists, and theologians. To improve your intrapersonal intelligence, “know thyself”—write in a journal, meditate, try the personality tests mentioned above.
8. Individuals with green thumbs and “horse whisperers” have naturalistic intelligence. They are sensitive to nature and may easily recognize and classify species. To get more naturalistic intelligence, expose yourself to the great outdoors: plant a seed, volunteer at an animal shelter, take a walk with a naturalist at the park, read about classifications of animals (kids’ books can be a great place to start).
9. Spiritual or existential intelligence fits all Dr. Gardner’s criteria except for association with a specific brain specialization—though this intelligence could be a whole-brain function. Those with this ability explore questions about life, death, and what lies beyond the subjective perspective. Prayer and meditation increase whole-brain communication and lessen the blood flow to the parietal lobes (which give a subjective sense of time and space). Explore what lies beyond through inquiry, reading, or talking with others.