Complex sentence: To reach the sanctum sanctorum, one has to stoop low, crawl or adjust his body sideward where a naturally created image of Lord Shiva, about 4 metres high, is visible.
Split into simpler sentences: To reach the sanctum sanctorum, one has to stoop low, crawl or adjust his body sideward. Inside a naturally created image of Lord Shiva, about 4 metres high, is visible.