It is divided into four stages, each one representing the degree of spiritual growth and karmic development at which the "chela" or disciple has arrived.
The two sentences, "as a man soweth, so must he reap," and "as he reaps so also he must have sown," give comprehensive expression to the idea of Karmic activity.
But for karmic reasons, settling for strictly factual solutions should be seen as a last resort.
This, obviously, is karmic retribution for the self-satisfied way I showed off my new phone to friends at the weekend.
Resist not evil, and render good for evil, ... were first preached in view of the implacability of Karmic law.