Sloth and the Hindrances

In ven. Nyanaponika Thera's compilation, *The Five Mental Hindrances and Their Conquest *, some aspects seem to recur: - One should attend to hindrances -- sloth included -- with wise attention and not unwise attention. What is meant by this? - For sloth, one should contemplate the drawbacks of sloth (e.g. meditate on death, on suffering) and on inspiring topics (e.g. sympathetic joy, spiritual journey, master's greatness). Are inspiring topics of contemplation natural remedies against sloth? If so, would *being moved* and *experiencing awe* counter sloth as well? Such states as awe or being moved have been studied and valued in psychology, but I have never seen them opposed to laziness or lack of motivation. It just seems to me that the topics of contemplation mentioned in the *Five Hindrances* text most likely elicit elevation and a sense of meaning in their practitioner.