“There is a marvelous medicinal power in joy. Most medicines are distasteful; but this, which is the best of all medicines, is sweet to the taste, and comforting to the heart. This blessed joy is very contagious. One dolorous spirit brings a kind of plague into the house; one person who is wretched seems to stop all the birds from singing wherever he goes . . . [But] the grace of joy is contagious. Holy joy will oil the wheels of your life’s machinery. Holy joy will strengthen you for your daily labor. Holy joy will beautify you and give you an influence over the lives of others.”