Symbolism as it relates to me specifically

I am a revert and it is only fitting to note that my return to the Church is a journey come full circle. The circle is also deeply symbolic of the Eucharist which was the primary draw back to the Church for me. Also full is an appropriate choice of words because I have found the fullness of the faith, of which I had part of as a Protestant.

Please see
The simplicity of what you see for a small writeup about the simplicity of such images as the circle.
My lifelong affirmation of the Real Presence for a small writeup detailing the importance of the Eucharist in my return to the Church.

Dome
Halo

Christian symbolism of the circle

The Circle
Standing for eternity, because it is without beginning and without end.



The Three Intertwining Circles
These indicate the doctrine of the equality, unity, and coeternal nature of the three persons of the Trinity.



Source: Christian Symbols and Glossary