If your loved one was a member of the military, played or was passionate about any type of sports, or stayed on the lake fishing in every moment of free time, burial urns are designed today to represent these hobbies and careers. For thousands of years, cremation has been looked down upon by some religions who prefer traditional burials and believe the body should be kept intact. However, cremation is completely natural; the remains return to ash, and can be placed in the earth in burial urns that are biodegradable.