The om symbol there are a few ways of translating it:
Om is the primordial sound from which the entire universe was created.
The om symbol is a mirror of the mind’s journey.
It also represents the three “gunas”, or qualities, found in nature.
It reflects the image of Lord Ganesha.
The enso (formally spelled ensō) is a Japanese symbol sometimes referred to as the ‘circle of enlightenment’.
The ensō can represent a desire for perfection and allowing the universe to be the way it is, also the material world that continues endlessly.
The drawing of an ensō also has symbolism with life, in that there is a beginning to life and an end (from the brush touching then finally leaving the paper), but the beginning and end continue in an ensō. Thereby also symbolising the complete circle of life: birth, death and rebirth.