See to believe

Do we really HAVE to see something to believe it? Does everything depend on equations that can be solved and answers that can be proved? 

The MIND...Wikipedia defines mind as "the aspect of intellect and consciousness experienced as combinations of thought, perception, memory, emotion, will, and imagination, including all unconscious cognitive processes"
Per science, doesn't all the above listed thoughts, perceptions, memory, emotions, will, imaginations etc. narrow down to electrical impulses in the neurons and couple of chemical reactions that take place due to the hormones? But, definitely these occurrences are more complicated and self-sustaining than proved by man. 
The mind therefore is something that defies the need for scientific facts to prove it. A child doesn't need a DNA report to acknowledge the warmth of its mom. Animals don't need a scientific validation to recognize, nurture and care their little ones. Likewise, there are amazing mind-blogging occurrences that take place in this universe to which science does not have an explanation. Ultimately, science was developed by man, and would hence be limited to his discovery alone. But that doesn't rule out the existence of the undiscovered. 

Well, definitely there does prevail something beyond evidences, equations and solutions.

The belief to see..