All who have this hope in him purify themselves, just as he is pure. 1 John 3:3
Following Christ is not an illusion. It is a conviction that keeps us at a constant search for our cleanliness, inside and out; it is understanding that we have to give up everything in order to start living a life that is pleasing to Him.
First we must understand that we are sinners and we need to strip all sin off, which is in our mind, our body and our soul, in order to take over our will and tear it out, so it will not dwell in us again.
Living pure is a lifestyle, which rejects everything that can harm or contaminate our lives; it is making tough decisions to stay clean and not allow something to make us fall.
Let us guard ourselves against what we see, hear, feel and everything we may come to lodge in our hearts which makes our garments dirty before his presence. Let us stay pure in the hope that, if He did so, we can also do it, for us to honor our Father who is in the heavens. Let us be certain that there is a place in the heavens which awaits us to be pure so we can walk with Him.