"Acting is not just a commitment toward your character and your co-actors; it is also a responsibility to your audience," he said.
For Arcilla, the craft requires more than technical precision. It demands empathy. Every role, no matter how flawed or heroic, begins with understanding the person behind the character rather than the stereotype they represent.
That understanding, he believes, cannot be taught within the four walls of a classroom.
"The biggest university in acting is this life," he shared, pointing to lived experiences as an actor's richest source material. Observing people, listening to their stories, and embracing life's complexities, he said, are what ultimately give performances emotional depth.
Perhaps no role embodies that philosophy more than his portrayal of Antonio Luna in Heneral Luna. More than a decade after the film reshaped conversations about Philippine history, Arcilla said he is still affectionately called "Heneral," particularly by younger generations who continue to discover the film through schools and family recommendations.
While audiences know him as one of Philippine cinema's most respected actors, Arcilla is now exploring another avenue for storytelling.
His debut Star Music single, “Ano Ba 'Yan, Punyeta!,” carries the same introspective spirit that defines much of his work on screen. Beneath its provocative title lies a call for collective accountability.
"Hindi isa lang ang may kasalanan o dalawa o tatlo. Tayong lahat, ina-allow nating mangyari o tayong lahat, may kanya-kanya tayong dapat ayusin sa sarili natin, sa puso natin, at sa ating isip (It isn't just one, two, or three people who are at fault. We all allow it to happen, or rather, we all have things within ourselves — in our hearts and minds — that we need to set right)," he said.
Rather than assigning blame, the song encourages listeners to begin with themselves — a reminder that meaningful change often starts with quiet introspection.
Arcilla also revealed that he is working on his first full-length album, which will feature theme songs from Dirty Linen, Pamilya Sagrado and The Alibi, alongside original compositions.
With upcoming films such as Beast, Happy Birthday to Me, the Metro Manila Film Festival entry Haunted Carnival, and the finale of The Alibi on the horizon, Arcilla's creative journey continues to evolve. Yet whether through film or music, his guiding principle remains the same: authentic storytelling begins with understanding life itself.