When observing an object, such as an apple tree, I impute the following:
Attributes: Whether I like that particular type of apple; how I perceive and feel about the shape and structure of the tree and the branches; the colour of the branches, the distribution of leaves and apples,
Expectations: How I expect the particular type of apple to taste and their texture; how I expect the the tree to blossom, bear fruit, and the leaves to fall at specific times of the year; how many apples I expect to have in each season; how I expect the branches to bend and snap when certain amounts of pressure is applied; and similar realistic and unrealistic expectations.
Both the attributes and the expectations fit into my own storyline that I have going on in my own head. The story may be a fantasy about how a summer spent picking an expected amount of apples from the tree and how each and every one tasted and felt according to my preferences. I then proceed to be attached to that fantasy.
This attachment means that I am disappointed when poor whether means that there are fewer apples, many apples are riddled with worms, and nutrients in the soil changes the taste and texture of the remaining apples. All of this goes against the attributes, the expectations, and the storyline that I am attached to, leaving me with a sense of disappointment and feeling distraught about my disrupted summer that not match up to my storyline. Whereas if I did not have those attachments, expectations, or storyline, or attachment, then I would have enjoyed my summertime a great deal more.