Gerrit Greve's Icon Series was started in 2001, with most of the works completed in 2001 and 2002. It has been added to every year since. These works were inspired in part by orthodox religious icons (especially Russian icons) from around the the Middle Ages, however, they are intrinsically infused by a personal ambition to remove the religious dogma inherent in their predecessors and leave only spirituality. There are approximately 200 paintings to date in this series.
This series was started by Gerrit Greve in 2006 as the Dreaming Series, but quickly evolved into the Journey Series. These are probably the most meditative of all the Sacred Works. Inspired by both primitive and modern cultures and religions, these works are an inspiration to meditation. There are over 300 paintings to date in this ongoing series.
Started by Gerrit Greve in 2007 as the Spirit Boat Series, this series slowly evolved into the Voyage Series which has continued to the present. Inspired by Greve's first childhood memories of traveling by boat as he left the islands of his birth; this series references the universal metaphor of the boat as a vessel for traveling into and in the afterlife, as well as the idea of traveling by boat to "other" worlds and as a vessel to carry one safely over treacherous waters. There are over160 paintings to date in this series.
These works were started by Gerrit Greve in 2006 as accompanying pieces to some of the Sacred Works, and were inspired by the vessels used in religious and social ceremonies, both in primitive and modern cultures. The multitude of metaphors that a vessel provides, add to both the complexity and the simplicity of the Sacred Works. There are over 50 vessels to date.