A the author is trying to hint that this means something and it’s important to the theme or lesson in the book
A neuron is a nerve cell that is the basic building block of the nervous system.
In both "Like the Sun" and "The Open
Window", truthfulness is the idea that is explored.
In Like the Sun, Sekhar decides to be truthful and makes a
pact with himself and eternity yet he soon finds out that being truthful isn't
so easy.
On the other hand, “The Open Window” conveys the message
that in a person's narrative about an incident, it is often difficult to
decipher the truth.