In Robert Frost "After Apple Picking" the events in the poem I believe can be interuptated in different ways based on how you read it.
Lines 1 to 7:
My long two-pointed ladder's sticking through a tree
Toward heaven still
And there's a barrel that I didn't fill
Beside it, and there may be two or three
Apples I didn't pick upon some bough.
But I am done with apple-picking now.
Essence of winter sleep is on the night,
In the first line of the poem, the ladder represents his life, while the tree itself represents life as a whole. The apples on the tree may symbolize opportunities passed up on in his life. The ladder being described as long could be showing his long life he has lived. The barrels that stand empty on the ground may represent the lack of opportunities and experiences he feels have happened in his life. The apples that remain on the branches are these unaccomplished opportunities and experiences. The person says he has grown weary of picking apples, meaning that he is done looking for opportunities in his life because of "the essence of winter sleep," representing his impending death.