His belief that a power existed behind the natural led him to try to capture a sense of that power, or the essence of nature in his art, sometimes through the use of symbols.
Ia percaya akan adanya suatu kekuatan di balik alam, sehingga ia berupaya untuk menangkap perasaan dari kekuatan tersebut atau esensi alam di dalam karya-karyanya, terkadang melalui penggunaan simbol.