Elastic, a company specializing in search technology, was invited to deliver a guest lecture at VU University in Amsterdam where Boaz Leskes, a core software engineer, introduced around 100 computer science and engineering students to the fundamentals of Elasticsearch. Despite most students being unfamiliar with Elasticsearch and Lucene initially, the lecture aimed to demystify the lifecycle of a document within Elasticsearch, detailing how documents are indexed, replicated, and retrieved across a cluster. Boaz engaged the students with humor and insightful explanations, sparking their curiosity and encouraging them to ask numerous questions, leading to an enthusiastic interaction. The session concluded with special recognition for the students who posed the most thoughtful questions, rewarding them with a book on Elasticsearch. Overall, the lecture was deemed a success, leaving both the presenters and students with a positive experience of revisiting academia.