乐 (lè): This character means “happy,” “joy,” or “gladness.” Think of it as the feeling of pure, simple happiness.
观 (guān): This character means “to look at,” “to view,” “to observe,” or an “outlook.” It implies a perspective or a way of seeing the world.
When you combine them, 乐观 (lèguān) literally translates to a “happy view” or “to view things happily.” This perfectly captures the essence of optimism: choosing to interpret the world through a lens of hope and positivity.