What do u Believe in?

So I was with a bunch of friends one Saturday night and we were all talking and having fun and somehow we got to talking about spiritual things like denominations and such and one of my friends said something about a certain subject that really struck a chord. He said something about the "Unforgivable Sin" which was blaspheming the Holy Spirit. I starting thinking about this and I realized how in err he was. The Bible never says anything about an "Unforgivable Sin" but it does say this.... that if we blaspheme the Holy Spirit you are going to hell. Now one has to think logically about this....What is blaspheming the Holy Spirit? The Holy Spirit is a spirit...if you say He will die, well He is a spirit...that's not possible. If you wish bad things on It, well the Holy Spirit doesn't discipline physically just convicts. What then can be considered Blaspheming? When you deny the Holy Spirit access to your life and spiritual growth then you are blaspheming the Holy Spirit since that is the only part of Him that he can affect the spiritual growth of your life. And how do you deny the Holy Spirit access to your life? Well the only way to obtain the Holy Spirit is to believe that Jesus died for your sins and that loyalty to and belief in Him is what gives you a membership to Heaven. So if there was an"Unforgivable Sin" it would be denying Christ ownership of your life. And this makes sense since those who are nonchristians do not have forgiveness and will never have it. So this "Unforgivable Sin" is not cursing the Holy Spirit or other things that you may think of, its really not becoming a Christian. I just wanted to mention this story because so many of us(Christians) are out there not knowing anything about what we believe in or our knowledge is very basic. You should know what you believe in and it should have Biblical merit before you discuss or talk about it otherwise you will hurt the cause of Christ by confusing people about the message of the Bible, which is a very big sin in itself.