I have to wholeheartedly compliment reviewer blaze32646 February 2021 for his/her "A slow moving film about letting go" review; a rare great in-depth analysis of how it should have been done more properly and why it's a huge miss of making this movie a greater and better movie.
The movie didn't completely tell the backstory of why that husband/father had become estranged to his wife/daughters, why the wife/mother still gave a damn to her betrayed/estranged husband and as a husband/father. it also failed to show us how this woman had been forced into a single parent mother, how his betrayal, his heartless cruelty impact the family he left behind. What's the reason he betrayed his wife/daughters? An adulterer for another woman? If so, can you believe this wife-by-marriage would forgive him? Schopenhauer On "Woman" claimed that Woman in Love is far weaker than woman in Hate; a woman in love and hate is far barbaric than most men. There's no way to correct such fact that this Mamma San in particular had evolved and transcended to a kinder and more generous female.
Therefore, once her persistence of carrying out the farewell ritual to her husband is quite obscure and argumentatively controversial, this movie could only have achieved a small part of a bigger picture. But nonetheless, still a not so bad nor so great or so unique movie.