The mind is the set of cognitive faculties housed in the brain, including consciousness, imagination, perception, thinking, judgement, language and memory. The brain learns through experiences stored in memory, both from external stimuli processed by the senses and internal reflections. Learning can be impacted if the mind is unclear due to factors like infections, drugs or chemical imbalances. False or incorrect learning can disturb the mind's balance and lead to emotional or behavioral problems. Mental disorders can arise from false perceptions, false learnings, or negative experiences that develop into delusional beliefs.