Permanence vs Transcience

Hi everyone,

Last week I mentioned Buddhist sand mandalas as a source of inspiration. These mandalas are created over the course of days or weeks and then wiped away once they are completed.

http://www.visualnews.com/2015/11/04/3-creative-lessons-from-buddhist-monks-who-make-mandalas/

I also mentioned the oil painter Dennis Wojtkiewicz. His work explores fruit and light under close observation.

http://twistedsifter.com/2013/01/translucent-fruit-paintings-by-dennis-wojtkiewicz/

Both the sand mandalas and Wojtkiewicz's work take an immense amount of concentration and dedication. They are both based on colorful radial patterns and are dedicated to showing the transient nature of reality. Is oil paint an appropriate medium for art that is intended to communicate the short lived and empty nature of things?