Camouflaged from the outside world, the churches are easy to miss. To see them, you have to descend into the mountain. Walking down, the first, overwhelming impression is of bold harmony. Pillars carved out of the red rock stand framed against an azure sky. In the ancient verandas and leaning against the gnarled texture of the walls, monks sit flicking through books a few hundred years old, wearing white robes and wrapped in deep blue shawls. The perfect coordination and the fastidious detailing of beauty makes the whole thing seem like an elaborately choreographed set the unreal location for a big budget period film. The fact that the monks are at ease with gawking tourists, and that the elaborately dressed priests happily pose for hundreds of cameras every day, adds to the feeling. But despite the touristiness, it is impossible to mistake the churches for anything other than what they are &mdash places of living, enduring spiritual practice and tradition. Each time we enter a church, Taye kisses the pillars and bows his head before the priest. Services see priests beating drums and dancing rhythmically, we are told, while rows of worshippers stand and chant in unison in the ancient hollows of the mountains. Some of the services go on for hours, and Taye shows us the wooden crutches supplicants and priests use to stay upright. This is Christianity as it was practised centuries ago, stripped down to its ancient, pulsing heart.