what exactly is the right mind state while meditation?

i am new to meditation and i read alot about it in forums and articles but i am confused, some people say it is thinking in nothing "nobody thinks in nothing", some say it is focusing on one thing like breath or any one thing and not let your mind think in another thing, some say you shouldn't resist thoughts, instead it is part of the correct meditation to observe your thoughts without judging them and let them go

also i found them talking about consciousness and awareness i really couldn't understands these two in the context!

can someone tell me the right concept of meditation?