Only very few people choose their religion. Most people are born into a religion and grow up in it. The religion becomes their home, if they want it or not.
Meditation on the other hand is a path of life which we can choose freely. It is first of all a technique, the theory and philosophy behind is secondary. Our view of the world will grow with our inner development and will eventually be based on our own inner experience of the Truth.
Members of all religions can meditate without having to leave their religion. But the one who meditates will in the end look for the one Truth that is hidden in all religions and from which all religions have come into existence. This Truth lies deep in our heart and can be realised by everybody who cares to look for it.