Hmm, I’m not too familiar with the practices, but when my Christian family visits the grave of my grandpa who died a believer (he converted in the hospital, so I think he wasn’t able to get baptized), we stand and pray silently in thanks to God for all he’s done. We don’t burn incense or paper money because the former’s reserved for the God to whom we pray and the latter’s obviously due to beliefs we don’t hold about what happens to dead people.

I’m a bit less certain about bowing to photos because I consider it a bit akin in level to saluting the flag or putting our hands over our hearts in the American Pledge of Allegiance (although I’ve become a bit ambivalent about doing those things in a country where the state cult isn’t the worship of YHWH). And what do you think about bowing in front of gravestones?

@Woody - 

Instead of telling them what I will not do, I want to tell them how I will do it and create an opportunity to explain it. Another emphasis is how we are to honor our parents when they are alive.

Is it culture/tradition matter? Or does it have religious components? I don't believe that there is nothing wrong in remembering ancestors, but in many families it goes beyond culture/tradition. But never underestimate the power of culture/tradition; specially, in cultures, where the bond with ancestors has so much importance. It is not such a simple matter.

The reason first missionaries were massively killed in Korea long time ago was not because of evangelism; it was because of the aggressive/insensitive way of approach to this topic, which had unchallengeble culture/traditional value back then. It was more of war between culture to cultre, then religion to religion conflict for many people who think of it. There are always people who rather die than give up their culture/tradition.

More over for countries (not to mention 1-2 centuries ago) where religion has a lot to do with national/cultural identity, sepcially, those with closed system (not opened to occidental culture) evangelism (Christianity representing invasion of occidental influence) becomes politial matter. Christianity, at the beginning can be perceived as a serious threat to their identity and also symbol of occidental imperialism; resistence will be increadibly high.

A culture always has a god. It’s impossible for God to be worshipped without the culture changing into something else. The question is, into its newer self or into the projection of another?