It is all right to make up your own interpretations about whatever you like, until you recognise it is a conceptualisation based on your ideas. To be aware of dependent conceptualisation and not to take them real, that awareness is what the circle expresses in Zen.
"There is no such thing as the real mind. Ridding yourself of delusion: that's the real mind."
(Sheng-yen: Getting the Buddha Mind, p 73)
“Don’t rashly seek the true Buddha;
True Buddha can’t be found.
Does marvelous nature and spirit
Need tempering or refinement?
Mind is this mind carefree;
This face, the face at birth."
(Nanyue Mingzan: Enjoying the Way, tr. Jeff Shore; T51n2076, p461b24-26)