According to the teachings in Chapter 14, what is the ultimate purpose of human birth and how can one avoid wasting this opportunity?

Chapter 14 highlights that human birth is an exceptionally fortunate and rare opportunity. Its true greatness is that it is the only form through which devotion to God can be achieved, the four types of liberation can be attained, and the Self can be realized. To live a life focused merely on food, sleep, fear, and procreation is to be no better than an animal. Therefore, to make life meaningful and avoid it being a 'useless burden on the earth,' one must pursue spirituality. The chapter advises that one must not be lazy in worldly duties but be observant, for this is how spirituality can be attained without effort.