Peter Grimes has an innate desire to free himself from the restricting and oppressive conventions of society: the rules of religion and the constraints of class structure, which imposes a "life laborious" onto Peter just like his father. It is a ceaseless cycle, and Peter's sheer determination to avoid this leads him to reject the traditional conventions and follow a drastically immoral and unorthodox way of life: murdering his father, ("with a sacrilegious blow" symbolising his denouncing of religious constraints), and his murdering of his young apprentices. Although the boys have done no wrong to Peter, he desires to subject a "feeling creature" "to his power," alluding to the powerless stature those in the working class are subject to, and the injustices of society, which create such an intense desire in Peter to harm innocent people to feel a sense of superiority reflects the hopelessness and injustices of both society and class structures.