Very simple but powerful book to read. There are many small small get away points to keep in mind to live life with full for happiness. E.g. Think your problem as potential Teacher, Creat Patience, Practice, Period- Spend aMoment, Every day, Thinking of someone you love, etc etc....
The main lesson to take from this book is that Happiness is not the destination or Goal, it is the journey. We are so obsessed to be unhappy that we have forgotten that we can be happy. Its simple.