For someone seeking eternal happiness, what is the primary obstacle and the recommended solution presented in this text?

According to Chapter 8, the primary obstacle to eternal happiness is attachment to the perishable world, including one's own body. The text states that this "carriage of flesh, blood, and muscle" is a "direct obstacle to the supreme goal." It also clarifies that worldly gains like wealth, family, or even the entire earth cannot satisfy the mind. The recommended solution is to make eternal happiness and peace the central goal. The path to this is the "worship of God in all beings," which is described as the "giver of the highest attainment." Chapter 8 advises that only the time spent in holy stories is a true gain, and one must practice to gain the experience necessary for this realization.