NepaliBabu, 
I am not trying to convince you that those things that you have not seen/experienced exist but there are things science cannot explain, or explained it wrong. Also there are things you have to believe without seeing. 

you never saw Apollo 11 landing on the surface of the moon , but you believe it coz you wanted to ( remember some scientists didnt accept the fact that it acutally landed in moon)
If you have gone through all the details on that journey ( including the secrets that were not told at that time) , that flight encountered unidentified flying objects which science cannot explain and it was not any thing from earth .The same astronomers who claimed to land on the mooon claimed the ecounter of UFO. This counts as paranormal too as it is beyond the expalanation of science.
About believing the things that you saw or experienced only, I am certain that you did not see or experienced any thing when you were in the womb and during the birth( and the entire process). But you believe she is your mom and her husband is your dad, coz you are ready to believe it. 

Talking about if science explains or matches any hypothesis, you cannot rely on them either. Science has gone wrong lots of time. Remember that sun used to revolve around earth and earth used to be rectangular. 

 If you believe on only what other (science) explained, you could be wrong about your concept of critical thinking.