Waste of time
There’s no such thing as a waste of time.
Popular opinion not withstanding.
There are however many possibilities with many possible outcomes.
Desire by it’s very nature may come into conflict with the desire of others.
To not desire anything may seem like a waste of time.
Our human life is a result of desire, it is our desire to achieve the highest spiritual understanding.
To not desire anything instead is nirvana, God. This is not a desire but is instead an understanding.
It is an understanding of the highest spiritual co-existence. Oneness with the universe.