This statement of positive change, combines the spiritual centering of the "I am" with the overcoming of fear and doubt with the "I can". It is a call to action to overcome the impossible. (At least impossible from the perspective of mere personality). The "I will" takes a stance of great spiritual truth, such as in the statement of "I will heal!", or "I will win!"
Concentration : The "I" of "I will" focuses your attention on the spiritual plane where all is One. One is the centering power of concentration and focus - wherever you hold your attention, healing and wholeness follows.
Meditation : The "will" of the "I will" is above imagination, and signals to imagination to begin producing images.
Visualization : Imagination is always broadcasting images that would solve mankind's problems. As in the case of "I will heal" , imagination allows access to images of never being injured - truer images that are above the images of injury. A leap of faith. "I will heal" now becomes - Be Healed!.
Adoration : The images ring true, the tingle of joy is enlivened. How long you can hold it, is the test now. Adore the "feeling", and encourage the vibration to stay enlivened - live it!
Most affirmations using "I will" need to be seen from the spiritual perspective which is "To Will". To Will to Heal, to Will to accomplish, requires the use of the Will toward some action, to heal, to manifest on the physical plane.