"To illustrate the concepts" means to provide examples or visual aids that help clarify and explain the ideas or theories being discussed. Full definition
Sometimes, we will also share some of our stories and experiences to help illustrate the concepts or practices that we are sharing. (raisefrequency.com)
Seeing an actual real - life example will illustrate the concept better than anything else I can offer. (redletterresumes.com)
To make it easier to understand the functional resume format, I'll illustrate the concepts with a client of mine who had success with this approach. (resumehacking.com)