The concept of "One Eternal Round" is difficult to explain, but it can be represented through symbols. One example was provided by Joseph Smith in the King Follet discourse:
"I want to reason more on the spirit of man; for I am dwelling on the body and spirit of man—on the subject of the dead. I take my ring from my finger and liken it unto the mind of man—the immortal part, because it had no beginning. Suppose you cut it in two; then it has a beginning and an end; but join it again, and it continues one eternal round. So with the spirit of man. As the Lord liveth, if it had a beginning, it will have an end. All the fools and learned and wise men from the beginning of creation, who say that the spirit of man had a beginning, prove that it must have an end; and if that doctrine is true, then the doctrine of annihilation would be true. But if I am right, I might with boldness proclaim from the house-tops that God never had the power to create the spirit of man at all. God himself could not create himself.
"Intelligence is eternal and exists upon a self-existent principle. It is a spirit from age to age and there is no creation about it. All the minds and spirits that God ever sent into the world are susceptible of enlargement."
Another interesting analogy is a loop sequence within Pi. Dan Sikorski discovered that if you search for the sequence "169" in Pi, it appears at position 40. Then search for 40 and it appears at position 70. Next, search for 70, and it appears at 96. The sequence eventually loops back to 169, then 40, etc. The full sequence is: 40, 70, 96, 180, 3664, 24717, 15492, 84198, 65489, 3725, 16974, 41702, 3788, 5757, 1958, 14609, 62892, 44745, 9385, 169, 40...
This odd mathmatical finding is another way to represent "One Eternal Round."