Central Idea "My Mother at Sixty-six"

Give the Central Idea of the poem My Mother at Sixty-six:–

अभी पढ़े: आचार्य रामचंद्र शुक्ल का जीवन परिचय 

The poem starts with the journey of the poet with her mother to Cochin on the moming of last Friday The poet noticed her mother sitting beside her, who was doing and open-mouthed and her face was colourless like ashen and corpse. At that, the poet realised that her mother had grew old but soon seperated those thoughts. And outside, there seemed young green trees, enjoying children. Then reached airport and standing far looked her mother, found wan, colourless like winter's moon and old pains and dildhood fear returned but the poet said to meet soon and while parting continuously smiled.