This film is a summary of Hou Hsiao-Hsien's film career. The way the male (Chang Chen) and female (Shu Qi) protagonists express their emotions and the background of the times in the three stories can be found in Hou Hsiao-Hsien's films of different periods. "Love Dream" is pure, like the other side of an unreachable dream; "Freedom Dream" is touching, but it is a dream that is closer to heaven; "Youth Dream" is cold, but it is reality. It doesn't make much sense to rashly say which period is the "best time (or the best movie time)" in Hou Hsiao-Hsien's eyes, because all time is wasted and wasted. Only after wasting and wasting can we pick out a certain period from our memory, pat the dust on it, and sigh that it is the best time.