Graves are an indicator for bereaved families, acquaintances, and friends to pray. It's another matter if there are circumstances where graves cannot be made, but if bones are enshrined in the house, people other than yourself will not be able to pray according to their own convenience. Personalizing bones like this, so to speak, should be avoided as much as possible.
Also, nowadays, there is a cemetery section in the middle of a city, and the number of ossuaries inside buildings has increased, but originally graves were built in a buffer zone between human society and the natural world. It is an area called a village out of villages, villages, and fields (mountains). I was sensitively learning about returning to nature from human society by burying it at the entrance to the natural world. After all, it's different if there are circumstances, but I don't think it's good to stop at home in a direction that leaves regrets or obsessions.
However, the shape of graves has become popular and discontinued depending on the times. Even if it's a family tomb, it's from the past few decades, so there's probably no need to stick to its current shape. Trying to send them in a beautiful way is a splendid form of memorial service. It is called “majestic” (shogon) in Buddhist. I'd like to say... but as a matter of fact, it's expensive and not something you can easily buy again, and as long as everyone prays, it's not something you can change on your own, so it's difficult.
Now, death is scary for living things. If you die, you'll look completely different... it's natural that you don't like it. That's how it evolved. That's instinct. But people have to settle for that horror. Because it would be hard not to do that.
Also, the natural world is scary, of course. This is because people are afraid of the astonishment of nature, so they created what is called human society. But at the end of the day, people are part of nature. There is a saying that it returns to the soil, but it is natural that the inside of the soil is dark and dirty.
I left it at home because I didn't like it, so the fear of death doesn't go away at the root. Let's take this opportunity to face it well. Now is the time to learn.
I recommend this as a clue to learning the traditional Japanese view of life and death.
http://bookstore.yahoo.co.jp/shoshi-131833/