rev·er·ie 
/ˈrɛvəri/ noun
plural rev·er·ies /ˈrɛvəri/ noun formal + literary : a state in which you are thinking about pleasant things [count] ▪ I drifted into a reverie. [=daydream] [noncount] ▪ He was lost in reverie. [=he was daydreaming]
