An ability to perceive is essential for all forms of life. This ability underlies the curiosity to know about the external world. Our life may depend upon what is going on outside in our immediate environment. We feel safe when all is going well and worried it is not. If not safety, the quality of life may depend on it. In addition, we humans feel happy and fulfilled when our curiosity to know the truth is satisfied.
Our parents send us to school to learn for various reasons one of which, of necessity, is related to survival — economic security. Other reasons are related to the cultivation of mind and behaviour because our knowledge and understanding shape our worldview which, in turn, drives our behaviour in the world.