"One's main point" refers to the most important idea or message that a person wants to convey or emphasize in a discussion or argument. Full definition
In some cases, security cameras should be installed in main points of access to deter criminal activity and assist police in investigations should a crime occur. (altmanllp.com)
If you can, highlight main points in a bullet point format — it is better than hiding them in the middle of a long paragraphs. (flexjobs.com)
Served as main point of contact between sales, online, editorial, and creative and logistics teams to execute custom programs. (resumemycareer.com)