Sin

In my contribution to the mailing list some days ago, I said "I don't know about my SIN, so I little understand about SALVATION" . After this, I happened to notice that the SIN meant being far away from GOD. I believe Jesus Crist, that he was born by the Holy Ghost, and the Resurrection of him. But often I am far away from GOD.
For holding such contradiction, I feel myself like a kindergarten child on my faith. And brothers and sisters seem like university students !