Ian Cron puts so many things so well; here, exactly why I wandered into a Roman Catholic Church seven years ago:

“Much of the liturgy for the mass, filled with its formularies, prayers, and creeds, is well over a thousand years old. I was moved that people were offering up the same words, giving expression to the same truths in different languages and time zones all around the globe that very day. Some were singing the liturgy in grand cathedrals in Europe, and some under a lush canopy of trees in Africa. Some were performing the liturgy in secret house churches in China, and others in prison chapels. Where or how it was said it didn’t matter. Solidarity mattered.

As I pondered the faces of saints captured in stained glass, the frescoes that adorned the walls and ceilings of the nave and apse, it dawned on me that the liturgy was connecting me to a long and ancient line of believers.  Time had become irrelevant.  We were one chorus, one communion of saints.  I was but one soul in the long procession of the faithful that wound its way down and along the hilly landscape of history.  I was appropriately small.”
– Chasing Francis, pg 90