A purine is a heterocyclic aromatic organic compound. It consists of a pyrimidine ring fused to an imidazole ring. Purines, which include substituted purines and their tautomers, are the most widely occurring nitrogen-containing heterocycle in nature.his is called complementary base pairing. In RNA, the complement of adenine is uracil instead of thymine. Other notable purines are hypoxanthine (4), xanthine (5), theobromine (6), caffeine (7), uric acid (8) and isoguanine (9).
However, because of Christ and His death on the cross, the meaning of the cross today is completely different. In Christianity, the cross is the intersection of Godâs love and His justice. Jesus Christ is the Lamb of God who takes away the sin of the world (John 1:29). The reference to Jesus as the Lamb of God points back to the institution of the Jewish Passover in Exodus 12.
The circle connecting the four arms of the Celtic cross symbolizes the unity and the eternal cycle of life and rebirth. Another interpretation of the Celtic cross is found in the Chi-Rho monogram, a cross made by combining the first two letters of the name of Christ in Greek, Chi (or X), and Rho (or P).