“We are always creating. Whatever a person’s mind dwells on intensely and with firm resolve, that is exactly what he becomes.”
Yes, I have come to realise we are powerful co-creators because not only we become what we think intensely about, we also create our own reality of the world around us. I think while our innate identity is unchangeable (for example, it can be said we are children of God/Divine Love/Universe), we can become what we think or believe we are.
For example, if our mind dwells on intensely and with firm resolve that we are a christian/buddhist/hindu/etc, we will take on that identity that we have created for ourselves. This form of external identity may change or evolve over time according to our theology or perception (based on how a christian/buddhist/hindu etc is supposed to believe and behave). I think it applies to other areas of life, as we take on different roles in life, such as writer, speaker, supporter, leader, etc, and we may become what we focus intensely on (in terms of whether we are capable, resourceful, etc).
So, given that our mind is so powerful, it matters a lot that we focus on positive and empowering thoughts about ourselves. I like this similar quote too:
“We are what we think. All that we are arises with our thoughts. With our thoughts, we make our world.”