What does the quote "they too remain within that one particularsummer" mean

verbs are words that express actions, perceived actions,or state of being

In verbs like cook, run,talk, and sing the action is obvious

Other verbs such as live, hear, smell, and want , express action is perceived or sensed

Finally some verbs simply suggest state of being such as, is, am, are, was, seem, become, appear, grow, and remain