Zizek on atheism and Christianity

From Zizek's The Perverts Guide to Ideology:

"The message of Christ is I’m dying but my death itself is good news. It means you are alone, left to your freedom, be in the Holy Ghost, Holy Spirit, which is just the community of believers. It’s wrong to think that the second coming will be that Christ as a figure will return somehow. Christ is already here when believers form an emancipatory collective. This is why I claim that the only way really to be an atheist is to go through Christianity. Christianity is much more atheist than the usual atheism which can claim there is no God and so on, but nonetheless retains a certain trust into the Big Other. This Big Other can be called natural necessity, evolution or whatever. We humans are nonetheless reduced to a position within a harmonious whole of evolution or whatever, but the difficult thing to accept is, again, that there is no Big Other. No point of reference which guarantees meaning."