When speaking of the past there is often an emphasis on things done for “the glory”. Glory was a virtuous ideal, but despite all the tales one must ask, if it was really so glorious why the constant emphasis on it? Why aren’t we continually basking in its shadow? 

In hindsight, there does seem to be glory in that the grass is always greener. Glory is another abstract ideal rather than reality. But it gives people a motivating force to strive with.