Gmail email analysis with Neo4j involves using a Google Apps Script, such as Gmail Meter, to collect data about email traffic and then importing that data into a Neo4j database. This allows for the creation of a graph that can be visually explored and queried using Neo4j's tools, providing insights into who emails whom, about what topics, with what frequency, at what times. The process is relatively straightforward, requiring only basic knowledge of spreadsheets and Cypher queries. By analyzing this data, it is possible to gain a better understanding of email traffic patterns and relationships within an organization or personal inbox.