Integrity is what makes the whole "acting on your excitement" thing work flawlessly.
The excitement is the discernement. The excitement always indicates the choice that is "most you." The quality of acting on that excitement is what determines the most amazing and intended outcomes. Integrity is the gatekeeper which allows in only the most positive, integrative results. Integrity is your assurance to receive a life transformed, a life experience that is according to desire, preference, joy and ecstasy.
Excitement as discernment... makes total sense to see it this way rather than have discernment be a child of the logical mind.