main point; gist; core; essence
Refers to the central or most important aspect of a matter, plan, or argument. Often used in formal or written contexts.
The main point of this plan is to revitalize the local economy.
I couldn't quite grasp the gist of his talk.
眼目 looks and sounds similar to 面目 but means 'main point' or 'crux' of a matter, not honor or reputation.
Compound of 眼 (eye, insight) and 目 (eye, point). The combination suggests the focal point or the most important thing to look at, hence 'main point' or 'essence'.