Romans12:2 And do not be conformed to this world, but be transformed by the renewing of your mind that you may prove that what is that good and acceptable and perfect will of God.
Once we are saved we must not go back to to our old mindset or old ways . It can be a slow process it but can be done. Sometimes we may trans form our lives and changed our thought patterns but we still follow the trends of this world. So, we find ourselves slowly conforming back to the worlds systems. But, we all called no to bend and conform back to the world. We need to be careful because conformity is speaking loudly in this day and time and sometimes it is easier to conform than to follow him.