Is my argument against afterlife an equivocation fallacy?

[BrianSoddingBoru4]

It sometimes does, it sometimes doesn’t. In your soul argument, I can’t see how it does.

What is the difference between believing that something exists and having faith that it exists?

Boru

I think most of the people don't really believe in heaven, that they would behave very differently if they believed in it. Why cry when somebody dear to you dies if it's only "goodbye for now", rather than "goodbye forever"?

Since that’s not even an attempt to answer my question, I’ll rephrase it: How do you differentiate faith from belief?

Boru