Our brain is created by genetics from previous generations and we inherit aspects of our personality from these genetics even down to the way we think.
Not exactly. Consider what Hubel and Weisel found:
In the 1960s and 1970s, the pioneering studies of Torsten Wiesel (1924 - ) and David Hubel (1926- ) revealed the pattern of organization of brain cells that process vision and how this organization relates to function. They also discovered how connections between nerve cells filter and transform sensory information on its way from the retina to the cerebral cortex, and how the cortex changes during development in response to experience. In 1981 Wiesel and Hubel received the Nobel Prize "for their discoveries concerning the visual system," shared with Roger W. Sperry.
And Sara Lazar:
How Meditation Can Reshape Our Brains
It's never as simple as we would like to think. Don't be too quick to jump on that Genetics bandwagon