It is a myth that just because someone meditates they are a religious person or have strong religious affiliations or belief systems. Mediation works for anyone regardless of any particular beliefs held.
A true meditation practice does NOT preach a set of dogmas to follow. To meditate effectively and receive the benefits of turning the mind inward, one does NOT have to behave in any certain way or look a certain way or be a certain race or age or sex. A truly effective meditation practice will charm your mind inward and present you with the opportunity to develop a relationship with that aspect of You, which has been patiently waiting for you to rediscover It within your own self. That Aspect has no need to convince you of any right or wrong, good or bad or anything else for that matter. However, if studied and focused upon, It can lead to mind-boggling discoveries that far surpasses any words or pictures that can be painted.
A truly beneficial and effective meditation practice leads to Self-discovery from the inside out. A truly effective meditation practice leads to endless growth and expansion that is infinite in potential for each individual practitioner.