This is a quote from Neville Goddard, and best explains the REQUIRED PROCESS to manifest anything you want with specificity and definiteness.
"To be absent from the body and be present with the Lord," is not given to a select few; it is a sweeping call to all mankind. The body from which you are invited to escape is your present conception of yourself with all of its limitations, while the Lord with whom you are to be present is your awareness of being. To accomplish this seemingly impossible feat you. take your attention away from your problem and place it upon just being. You say silently but feelingly, "I AM." Do not condition this awareness but continue declaring quietly, "I AM -I AM." Simply feel that you are faceless and formless and continue doing so until you feel yourself floating.
"Floating" is a psychological state which completely denies the physical. Through practice in relaxation and willfully refusing to react to sensory impressions, it is possible to develop a state of consciousness of pure receptivity. It is a surprisingly easy accomplishment. In this state of complete detachment a definite singleness of purposeful thought can be indelibly engraved upon your unmodified consciousness. This state of consciousness is necessary for true meditation.
This wonderful experience of rising and floating is the signal that you are absent from the body or problem and are now present with the Lord; in this expanded state you are not conscious of being anything but I AM — I AM; you are only conscious of being. When this expansion of consciousness is attained, within this formless deep of yourself, give form to the new conception by claiming and feeling yourself to be that which you, before you entered into this state, desired to be. You will find that within this formless deep of yourself all things appear to be divinely possible. Anything that you sincerely feel yourself to be while in this expanded state becomes, in time, your natural expression.