The Penally cross is found in the churchyard at Penally, near Tenby and dates from the late 10th century and is six feet high. Its lofty shaft and small head is typical of Welsh crosses. The head of the cross in the form of the wheel cross developed in the Celtic world from the Chi-Rho monogram representing Christ. The letter X (chi) and P (rho), the first two letters of Christ in Greek, were one over the other. After centuries this symbol came to be enclosed in a circle. The knotwork moving up the shaft symbolizing everlasting life changes into a vine scroll. The vine in Celtic art represented the Tree of Life. The Tree of Life, with its roots in the earth and its branches high in the air symbolizes a connection between heaven and earth.