What is the meaning of life? This is one of the oldest questions humanity has ever contemplated. Some, including myself, would argue that the question itself is not well formed, and is perhaps meaningless, or at best, misguided. Others (typically those who believe in God) confidently assert that not only is there an official meaning to life, but also that they have found it!
One of the more insidious and even bizarre claims made by many theists, is that life has no meaning without God. It is insidious because it seems many people are taught this either directly or indirectly as part of their religious upbringing, and therefore they simply accept it as a truism, an undeniable fact of life. It seems to be protected more so than other religious beliefs, probably because there is so much at stake if it were true. I think this belief can lead to unhealthy thinking patterns and behaviours.
But this claim is also bizarre, when you consider the large number of people both alive now and also throughout history who have lived happy and fulfilled lives without a belief in God. It would be utterly perverse to believe that not a single atheist who has ever lived has been able to live a life rich in meaning.