Really?
I thought it was just an empty promise to be honest witchu. I know what he was trying to do. He was trying to make the graduates think about others more. But at the end of the day, in a secular society, if there is "nothing in it for you" to be nice to the person next to you, why would you do it?
The speaker said this has nothing to do with religion, spirituality, etc.
But I would argue that you've entered the spiritual realm once you begin to realize the feeling of "oneness with others".
You can love others, or help others without a feeling of "oneness". Religion and spirituality do not hold some sort of monopoly on thinking of others or being kind to others.
It can help, but it is not necessary.