Here's a breakdown of the meaning:
* Book bag children: This refers to children carrying book bags, symbolizing their commitment to education and learning.
* Future of the nation: This implies that the success and prosperity of a nation depend on its people.
* Lies in: This emphasizes that the future is directly linked to the children and their education.
Therefore, the phrase suggests that the future of a nation depends on the education and development of its children.
It's a reminder that investing in education is crucial for the growth and prosperity of any society. Educated children have a better chance of contributing to their nation's advancement through innovation, leadership, and responsible citizenship.
The phrase can be interpreted in a more literal sense, too, depending on the context. It could also suggest that the children are carrying the burden of their nation's future on their shoulders, highlighting the pressure and expectations they face.
Ultimately, the interpretation depends on the specific context in which the phrase is used.