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What is the ideal life? What about this: We grow up. We leave our home. We enter the alien country, learn new things, work and become imprisoned. We escape, return to our home land, but now we can enter the glass tower.
The outline of this story is from an old Tibetan legend, retold in "Wholeness Lost and Wholeness Regained" by Herbert V. Guenther.
In earlier times, artisans did this. They left their home and wandered to other countries to learn their art from one master here and another master there. Eventually they returned home, but now as masters on their own right.
The shamans also made a journey to learn their trade, eventually returning with the ability to help those at home.
So life is not only about achieving something out there, but to return with new knowledge.