Might of Thoughts page 142

Lower thoughts form lower feelings, lower habits and lower circumstances, such as alcoholism, hate, afflication, resentment, sorrow, grief, bitterness, errors of judgment, and so forth - and many kinds of suffering. If one's thoughts are destructive, then they crystallise into confusing and exhausting habits and circumstances, which when the human being is afflicted by them is no longer able to control.

Might of Thoughts page 144

In fact, the creational, natural powers in the human being work with him/her and through him/her in order to be helpful to him/her in making real the thoughts which are most intensively tended and nurtured.