The purpose of our life needs to be positive. We weren't born with the purpose of causing trouble, harming others. For our life to be of value, I think we must develop basic good human qualities - warmth, kindness, compassion. Then our life becomes meaningful and more peaceful - happier.
Dalai LamaAccording to accounts of the Buddha's life, it would seem that he had a very deep relationship with nature. He was not born in the royal palace but in a park, under a sala tree. He attained complete enlightenment under the bodhi tree and left this earth to enter Parinirvana, again, between three sala trees. It would seem that the Buddha was very fond of trees.
Dalai Lama