Do I always have to own a grave?

Even if you don't have a tomb, I don't think people who have died will come to mind if you don't have a bodhisattva heart.
What are humans born into this world for?
Having a tomb means establishing a bodhisattva heart.
You can build graves even if you're not a Buddhist.
Speaking of why people have graves in Buddhism, they perform bodhisattva as a memorial service for the deceased, and do something with the power they have for someone in this world. The stone pagoda that promised to hold a memorial service for such a way of life is called a tomb, and it's not a box to put bones in. Today, there are many people who don't have this kind of heart, so even in Buddhism, they don't have a Buddhist heart, and they only care about themselves or their own home.
Bodhicitta is an oath that I will lead myself, others, and those I meet today to the right place, no matter what kind of person, animal, or non-living thing. Seek enlightenment and improve your own humanity. Activities are carried out to illuminate a corner to apologize to the world so that the light received from the deceased and those who took care of them is reflected as a memorial service for the deceased.
The reason this world is getting better is probably because few people have a good heart, a sense of compassion, a sense of compassion, and a sense of bodhi.
Doing that is the best memorial service.
If I don't have money and can't build a tomb, I will still work, pledging that I will stir up a sense of retribution and save the world.
People who don't do that and just take care of themselves will only do their own thing for the rest of their lives.
Therefore, the true meaning of building a tomb is to create a memorial tower, a source for spreading good hearts, and to spread Buddhism widely to remove suffering from people in the world and provide comfort, and then put it into practice. Graves are a symbol of Bodhicitta. The spirit of offering a memorial service appears where the Bodhi Heart is performed by oneself. Whether there is a tomb or not, I dedicate my whole body and soul to it.
They will make a memorial service based on their own actions. This is the bodhisattva spirit, the spirit of offering a memorial service, and an act of thanksgiving.
Therefore, I wrote it in the title, but if you don't have a tomb and you don't have a bodhi heart... please think about the rest for yourself. Gassho

I read it.
It costs a lot of money to build a tomb, doesn't it? It certainly takes determination to build it now, doesn't it? And it will be necessary to continue protecting graves from now on.
If you are going to make a memorial service for that person, I think it's okay to enshrine them at home without having to build a separate tomb and bury them.
I think it's okay to hold a memorial service at home until you have sorted out your feelings.
Nonetheless, I think it would be preferable to either bury it somewhere, and eventually return it to the soil.
Those who have passed away went to the Buddha and were born to attain Buddhism.
So the remains are no more than traces of that person.
I think it would be desirable to move away from there little by little, sort out your feelings, and hold a memorial service with all your heart for the people who went to the Buddha.

Even if you have a grave,
“When I died
I want them to be buried together,”
If you are paying for a Buddhist altar at home
There are no few.

If you don't have a Buddhist altar,
Something simple is fine, so please prepare it,
I would be grateful if your bones were enshrined.