Intellectual disability is a condition diagnosed in individuals with deficits in intellectual functioning beginning in childhood and

The answer is childhood and poor adaptive behaviors. 
Intellectual disability is a state which individual is incapable to adapt things surrounded him or her. Everyone who was eligible for a diagnosis of mental slow development and progress is entitled and qualified for a diagnosis of intellectual disability. Individuals having intellectual disability shows random sheer incompetence, poor understanding, poor adaptation in behaviors of real-life skills such as cleaning, grooming, or avoiding danger, the ability to work, take personal responsibility, and social skills.

Iwould say all the above personally but i think the desert would be d

1.  go out into nature and commune with the divine2.  experience real solitude to truly perceive nature3.  realize that individuals are meant to learn from nature and transcend it4.  think of nature as a symbol of the divine