Will-power
Will-power is the light of the soul that reveals and manifests God on earth in the physical, in the vital, in the mind and in the heart. When it manifests God in the physical, it is dedication. When it manifests God in the vital, it is determination. When it manifests God in the mind, it is illumination. When it manifests God in the heart, it is realisation of the Absolute.
Sri Chinmoy, Silver thought-waves, part 1, Agni Press, 1992