I can't write you the whole essay but i will say people were taught things differently and develop different personalities through the things they've experienced during the past and that builds up themselves as a person.
We were all made unique It could of have come from our parents or our ancestors because of our genes.we are all different no matter how what or what we do we will always be different than others even twins.
Basically, the quote means that this lady has lived a long, tired, and hardworking life. Her soul is at rest because she is satisfied with the life that she lives.
