It is the deliberate yet rapid action of the mind when before falling to sleep or dismissing thought we _bid_ the mind to subsequently respond.

It is more than merely thinking what we are to do; it is the bidding or ordering self to fulfill a task before willing it.
Forethought in the senses employed or implied as here described means much more than mere previous consideration or reflection, which may be very feeble.

It is, in fact, "constructive," which, as inventive, implies _active_ thought.

"Forethought stimulates, aids the success of honest aims." Therefore, as the active principle in mental work, I regard it as a kind of self-impulse, or that minor part in the division of the force employed which sets the major into action.

Now, if we really understand this and can succeed in employing Forethought as the preparation for, and impulse to, Self-Suggestion, we shall greatly aid the success of the latter, because the former insures attention and interest.