What does Ra mean here?

[zenmaster]

Here's the biological example:

The body is a creature of the mind’s creation. It has its biases. The biological bias must be first completely understood and then the opposite bias allowed to find full expression in understanding. Again, the process of acceptance of the body as a balanced, as well as polarized, individual may then be accomplished. It is then the task to extend this understanding to the bodies of the other-selves whom you will meet.

The simplest example of this is the understanding that each biological male is female; each biological female is male. This is a simple example. However, in almost every case wherein you are attempting the understanding of the body of self or other-self, you will again find that the most subtle discernment is necessary in order to fully grasp the polarity complexes involved.

Psychologically, we explore one facet of our being at the expense of the other. Another person may be pursuing a reciprocal or conjugate or complementary path of another - for example, due to personality biases (MBTI). That creates polarization between the two people.