Hono is a religious act performed by ujiko (shrine parishioners) and danka (supporters of a Buddhist temple) aimed at respecting or appeasing and pleasing Shinto and Buddhist deities in which people offer 'something of value' to such deities (including tombs).
奉納（ほうのう）とは、氏子・檀家が神仏を敬い、また鎮め愉しませる目的のため、人々にとって「価値のあるもの」を供物として神仏（お墓なども含む）に捧げる宗教的な行為のことをいう。