Upon a general reading of either strip, the audience can clearly understand that McCay presents us with dream sequences. However, after closer reading there is much more to be appreciated than a mere group of pictures.
The structure of the panels reflects the plot within them, as their size and shape often change according to the state in the dream, the characters within the dream, or the difference between being awake or asleep. Not only does this characteristic provide more meaning to what is happening within the strip, it also makes for a more visually interesting page. McCay also composes each frame to subtly indicate what may happen in the next panel, and thus creates a relatively seamless path for the reader to follow. For example, a character continuing to slump or fall over during the course of several panels may be leading up to the final "awakening" panel in which we see that the dreamer has fallen out of bed. McCay is able to combine finesse in all aspects of visual storytelling to produce a beautiful and sophisticated work that stands out as the pinnacle of comic strip creation.
I also found the differences between Little Nemo in Slumberland and Dream of a Rarebit Fiend to be intriguing. Although they both are categorized under "dreams," the two strips adopt contrasting approaches to how they address the subject. Little Nemo centers around children, seeing as Nemo himself is a small boy who wanders throughout his own dreamlands. Although he seems quite alarmed at certain points, the general tone is one of wonder and discovery. Dreams of a Rarebit Fiend on the other hand deals much more so with fear and insecurities. The latter also has adult characters, which I interpret to be a comment on the differences between adult and child mindsets. Whereas children typically approach the unknown with an absorbent mindset, adults are much more rigid in their uncertainty which results in much more frantic reactions to the situations presented in their dreams. But in both cases, the comic strips bring to surface issues that are relatable in the sense that many people have felt or thought about the subjects that McCay addresses, but never voice. Because of the universality contrasting the personal secrecy of McCay's subjects, readers can easily place themselves in the characters situation and can easily become emotionally invested in the episodes which is a valuable quality in any good piece of work.