According to the teachings of Buddha, what is the ...

42.

The meaning of life is living.

The Buddha taught the 4 noble truths, which are:

   1. Suffering exists
   2. Suffering arises from attachment to desires
   3. Suffering ceases when attachment to desire ceases
   4. Freedom from suffering is possible by practicing the Eightfold Path

The purpose of our human lives is to see through our delusion and end suffering by walking the Noble Eightfold Path:

Right View
Right Thought
Right Speech
Right Action
Right Livelihood
Right Effort
Right Mindfulness
Right Contemplation

The meaning of life from a Buddhist view point is that life as a human being is a rare opportunity to relize an enlightned way to end suffering,it is a commonly held opinion that beings that are born as animals or ghosts either suffer too much or do not have the ability to realize a enlightened view point. On the other side, heavenly beings enjoy too much happiness and have very little motivation to end suffering. Life as a human being offers a middle position between suffering and happiness and the opportunity to realize that beings fear suffering and desire happiness and that serves as a means for the motivation to realize a permanent solution towards ending suffering.