Evolution: should we believe in it?

Why is it important to know where we stand in the issue of how life begins?

Or why does it even matter if we believe in the theory of evolution or not?

Because if the theory of evolution is true,then there is no purpose in life!

Think about this:

Evolutionists believe that all things in the universe is a result of a big bang . But the question is , who or what causes the so called big bang? What is reasonable and logical to believe all things has no begining or all things has a beginning! They also argue of their belief of humans evolving from apes. But if we originated from apes ,how come there is a huge gap between monkeys and men? Gap in language, in emotions, awareness, intelligence and so on.

And even the simplest form of life is so complex to to understand!

But still many believe in evolution! Even though they have not even considered the evidences, they argue that if some scientists believe it so I should believe in it too.

Consider this:

Imagine you're hiking in a dense jungle then you saw a huge beautiful House! Would you think wow! It's incredible that this house suddenly appear in the middle of this jungle! Of course not! The first thing that will come in to your mind is: WHO DID THIS? So why then it is also logical not to believe that life originated by chance?

Although scientists spent decades of research they themselves have not come in to terms of how to really explain their theory of evolution! If these intelligent scientists questions their own theory amongst themselves, is it wrong to for us to question their theory of evolution?