Disharmony
In chess, one of the most important things to have when you're planning an attack, is to have tempo and harmony, so when you begin the strikes you don't leave any pieces unattended or you leave key pieces undefended, this puzzle might want to show us that, but first we need to solve it to find out.
This puzzle is somewhat short but it was probably one of the puzzles that took me more time to solve, especially because I had no idea what to accomplish...
But turns out it's already forced mate in a couple of turns.