The most important reason anyone is an atheist

[Esquilax]

Sorry Esq. but you bring no evidence at all.
How do you know that when the body die also the consciousness has to follow?

We don't know for certain, but there's nothing to suggest that anything persists after death, and everything to show that nothing does.

Who told you that the consciousness has always to be connected to a physical body?

What evidence can you bring to the table that shows that it isn't? Have you ever experienced a consciousness that wasn't attached to a body?

One more thing.
You are the one who is backing up this assertion so is YOU that need to provide evidence not me.

... I'm the one with the evidence, so therefore you- lacking in any evidence at all- don't have a burden of proof. Sorry, dude: you still do, according to every rule of science and debate. The fact that you won't shoulder your burden says tomes about your claim and the likelihood of it being true.