A symbol can allude to meanings beyond the mere image.

The Celtic Rose is considered a symbol of purity of the heart. In general, the Rose has been associated with the Virgin Mary, sometimes called the “Holy Rose”. In Celtic mythology, rosettes were associated with the sun and the Celtic solar god. Thus, the rose symbolized both heavenly perfection and earthly passion.

For me, the Celtic Rose, centered and circled in a square figure, is a bridge-like symbol connecting and containing our spiritual yearnings to be created on earth. The image in the center invites us to go deep within ourselves to make the connections. Astrology, with its message “As above, so below”, is a technique to help us in this endeavor.

References:
Celtic Art by W. John Murray
Dictionary of Celtic Myth and Legend by Miranda J. Green