I almost never skip my visit to my father's grave at the temple that hosts our family grave in Hakusan, Tokyo. My mother, who is 106 years old this year (2022), also visited in a wheelchair last spring.
We offered flowers to a grave that holds no remains and silently pressed our hands together in prayer. Having had quite a life as a fashion designer, I may have been able to assuage at least some of my father's resentment.