I dont understand the poem "Grandfather" by Jayanta Mahapatra. Can somebody explain the summary of this poem?

This poem is
about an old man who suffered through a famine The old man is the speakers grandfather. The
speaker starts out reading the grandfathers diary, for he says:

The yellowed diarys notes whisper in vernacular

This means that he is reading the grandfathers diary, written in his native language
(vernacular). By reading the diary, the speaker can experience what his...