This article may be of benefit in understanding the nature of pleasure within Epicurean philosophy, and here is the abstract:
QuoteAbstract:
This chapter’s main aim is to bring into focus Lucretius’ celebration of his own Epicurean pleasures. The DRN refers in its very first line to divine as well as human pleasures. It closes with the most frightful scene of bodily and mental pain, one that owing to the poem’s evident incompletion still lacks its Epicurean moral lesson about why even the most intense bodily pain need not be feared. In between those two extremities Lucretius offers a uniquely sensitive, and rarely appreciated, commentary on the meaning, boundaries and divine nature of true Epicurean pleasures, and on their intimate relationship to the study of physics, by one who can claim direct experience of their transformative effects.