Whether we consider the individual, family, local, national or international level, peace must arise from inner peace. For example, making prayers for peace while continuing to harbor anger is futile. Training the mind and overcoming your anger is much more effective than mere prayer. Anger, hatred and jealousy never solve problems, only affection, concern and respect can do that.
On a certain day, month and year one should observe the ceremony of tree-planting. Thus, one fulfils one's responsibilities, serves one's fellow-beings which not only brings happiness but benefits all.
Happiness is a state of mind. With physical comforts if your mind is still in a state of confusion and agitation, it is not happiness. Happiness means calmness of mind.
One thing I want to make clear, as far as my own rebirth is concerned, the final authority is myself and no one else, and obviously not China's Communists.