"The family and race in which the body is being formed is determined by the ego about to incarnate who is able to select the race and who, according to past associations and inclinations, is able to decide upon and bring about the influences and conditions which will affect the body during its formation and to provide it with such tendencies as are the result of its past actions and which fit the necessities of the present. Some egos are too dull and heavy from ignorance and indolence to bring about the conditions in which their physical body should be born and to convey the tendencies and inclinations, but they may be aware of the preparation of the physical body according to the psychic model and form by others. This work is done for them and continued until they are strong enough to do it for themselves."