The power of imagination makes us infinite.

In this aphoristic line, imagination is treated as a faculty that breaks the limits of the merely given. For Muir—whose writing often moves from close natural observation to expansive, almost spiritual reflection—imagination can enlarge the self beyond physical scale, time, and circumstance. It allows a person to range across landscapes not presently before them, to empathize with other forms of life, and to conceive of nature as an interconnected whole. “Infinite” here is less a literal claim than a statement about inner capacity: the mind can continually generate new meanings, possibilities, and connections, making human experience feel unbounded even within a finite body.