In an interview with WatchLOUD, Apollo Brown details the concept behind the album title:
The concept of like ‘delusions of grandeur’ is seeing yourself differently than other people see you. Looking in the mirror and see a lion but you’re really a little cat. That’s delusions. And grandeur is like the upper echelon, the peak, the culmination of everything. And I always do every album like it’s my last album. If I could leave hip-hop or die tomorrow or went deaf I am happy with my catalogue. This is the culmination of what was before it. This is the first compilation. It’s been a while and the fans have been wanting it but I had to choose the right time. That’s kind of why I named it that.