Answer:
He used to feel peace and enjoyment from nature during his childhood.
Step-by-step explanation:
Mary Shelley's "Frankenstein" revolves around a young scientist's zeal to be scientifically advanced, leading to his creation of a monster from human remains. And along the lines of refusing his duty as creator, he inflicted his creature with the most dangerous upbringing, which led to the destruction of his life and family.
In Chapter XIX, Victor Frankenstein and his best friend Henry Clerval arrived in London. Victor had promised the monster that he will create a companion for him in return for a peaceful life without any disruptions from the monster. And in this chapter, Victor recalls his childhood days, stating "during my youthful days discontent never visited my mind". But the peace and enjoyment of those days no longer accompany him. Rather, he was just full of obligations and a heavy heart, with the need to create another life for the monster he had created.