For the first time in my life I have taken a "break" from church. I have been very surprised to find my spiritual life growing without it. At first this was confusing to me, but I have come to believe that church, while important, can lock you into only thinking about what you hear there week after week and season after season. After a time you may find yourself accepting that this is all there is to faith and spirituality - but I have experienced much more being away from church. I have also been seeking it and focusing on my spiritual growth, it didn't happen by accident.
Looking into meditation and Buddhist practices of tranquility may be, to some, not Christian. I disagree. It all works together beautifully. My prayer life has become much more about listening and less about asking. God speaks in the stillness.
These words from an interview with Ekhart Tolle are validating to my experience:
You can have religion with spirituality. You can have religion without spirituality.
Some people are so identified in their belief structure that they're completely trapped in their thinking. There is no spaciousness.
Any Christian who wants to go deeper into their own spirituality and not abandon their religion - there is depth in Christian teachings and in the words of Christ.