How was this universe formed ?

How was this Universe formed?

 It is a mysterious question . We don't know the truth about origin of this universe . Even we don't know how was this earth formed ? 

It is wonder thing that we are not sure how was our earth home made ? Our science can say only about its composition . Peoples who have trust in god say that universe and Earth gifted by God to them . Some time i surprised that we don't know why only earth has life ? what is about other planets ? What is about sun ? Finally to know this we reach on a platform which is called science . 

Science 'Big-Bang' theory said " A light energy had come and this universe was born " . 

But what does it mean ? From where light had come ? 

But if we leave science and come to our Historical volumes as, Bible , Purans etc we can see that same thing was wrote down inside them that our universe is formed by a light . 

It is surprising us that the fact which science proved right now that had been written 4000-5000 year ago ? 

Overall we can't say anything with confidence about formation of  our earth and universe . We have a life and we should use it in its best way .