Why is this passage from the hunchback of notre dame "And then, Phoebus was alive; she was sure of it, she had seen him. To her the fact of Phoebus...

Why is this passage from the hunchback of notre dame "And then, Phoebus was alive; she was sure of it, she had seen him. To her the fact of Phoebus being alive was everything. After the series of fatal shocks which had overturned everything within her, she had found but one thing intact in her soul, one sentiment,—her love for the captain. Love is like a tree; it sprouts forth of itself, sends its roots out deeply through our whole being, and often continues to flourish greenly over a heart in ruins.

And the inexplicable point about it is that the more blind is this passion, the more tenacious it is. It is never more solid than when it has no reason in it." impirtant to he novel as a whole?