“Inspiration has three main qualities. Pyschologists Todd M. Thrash and Andrew J. Elliot have noted these core aspects of inspiration: evocation, transcendence, and approach motivation.
Inspiration is evoked spontaneously without intention. People are usually inspired by something, whether it’s an inspiring role model, teacher, or subject matter. Which is all the more reason why we ought to create the conditions for inspiration.
Inspiration is transcendent of our more animalistic and self-serving concerns and limitations. Such transcendence often involves a moment of clarity and awareness of new possibilities for oneself as well as others. As Thrash and Elliot note, “The heights of human motivation spring from the beauty and goodness that precede us and awaken us to better possibilities.” This moment of clarity is often vivid, and can take the form of a grand vision, or a “seeing” of something one has not seen before (but that was probably always there).
Inspiration involves approach motivation, in which the individual strives to transmit, express, or actualize a new idea or vision. According to Thrash and Elliot, inspiration involves both being inspired by something and acting on that inspiration.” Source
I have a slightly more simplified understanding of inspiration: when one is inspirited is in-pirit-ed so in some way or another in that moment is in touch with spirit and/or touched by spirit. As a result of that one can feel inspired to do something and/or act upon that moment of inspiration.