In his work he reveals the tranquility in the subtle change of coloured streams of light. The curiosity in understanding our surrounding and purpose entrenched in the artist’s practice is evident in his strive to capture the ethereal in a lucid form. As Casselman states “The who, what, where, why and how questions began for me in my childhood. Following these notions has put me on a path embracing limitless thought and combined with the deeply cathartic nature of the creative process I’m kept questioning, humbled and ever striving to embrace the unknown through the only place I find absolute logic: pure abstraction”.