Nibbana(nirvana) is NOT a place of endless indulgence or extravagance, not by a long shot. In fact, the real definition of Nibbana is a Blissful
absence of suffering.
Suffering is a key concept in this belief.
Also most do not await the return of Buddha. It is seen as he had broken free of the cycle of rebirth, and attained Nibbana.
Buddha was not/is not a god. While we give respect to him and his wisdom, he himself said he was not to be worshiped as a god. He discovered truths of
the nature of reality and shared them.
To break it down:
1. Suffering is part of all lives here.
2. The cause for suffering is craving of various things/ideals.
3. The end of suffering is found in Nibbana. Ultimate peace and understanding.
4. All persons who so desire can work toward Nibbana via 8 concepts that they can strive to employ and understand. Those being:
Right Understanding - striving to see things as they truly are.
Right Thought - striving to keep mind focused.
Right Speech - striving to speak justly and be true to yourself and others.
Right Action - striving to act in manners that are balanced and of virtue.
Right Livelihood -striving to live in a means that brings no suffering upon yourself or others.
Right Mindfulness- striving to be mindful of all actions and the nature of your existence.
Right Concentration -striving to keep your mental focus on kind understanding.
Right Effort -striving to practice these things as best as one can.
So anyways, that's a basic rundown for you. I just wanted to clear some of that up.
On topic, I find it strange the boy is called "Boy Buddha" as the Buddha did too fast and bring harm to his body in order to gain enlightenment. But
he learned that this was not the best way to achieve his goals, he found what is now called the "Middle Path" which he used to gain enlightenment,
and even strived to keep the middle path until the day he passed on. That middle path, did not require him to starve and harm his body. Rather to only
give his body what was needed.
Maybe that boy will realize that too in time.