You said: "If we all understood everything about sickness, free will, death ect.. the meaning of life, well, why would we bother to talk to God? The same goes for any relationship we have. If we know everything there is to know about a person tehn we wouldn't bother talking to them. Maybe God wants us to ask HIM all these questions?!."
You need to have a relationship with God in order to know him. If you knew everything about your husband, you still will talk to him, why? because there is a loving bond.
God himself already has answered all these questions.. ( Everything I am posting here it is nothing else but what HE has said in simple terms, however; with my own scientific, philosophical terms.) It is just a matter of recognizing this through our intellect and... to know WHY God needs to make himself known NOW and no 2000 years ago.
The beauty is that through meditation you can experience God.
http://www.brahmakumaris.com If you want to know... and
http://db.bkwsu.com/index.cfm for a center near you for free classes as a community service.