What does 'a single pillar thrust into the ground, without the need for a single tile' mean?

Ganlu Rock Temple is located on the west bank of Jinhu Lake in the Taining Scenic Area within Taining County, Fujian Province, on the west side of Changtan Human-shaped Mountain. It was founded in the sixteenth year of the Shaoxing period during the Song Dynasty (1146 AD) and has a history of over 850 years. The temple adopts a unique architectural structure known as 'a single pillar thrust into the ground, without the need for a single tile,' and is one of the long-famous rock temples at home and abroad. It was listed as a provincial-level cultural relics protection unit in the 1950s. Address: Dajinhu Scenic Area, Taining County, Sanming City, Fujian Province