Henry paints the vision at first with a broad brush.  He sets the scene.  Each man in the army begins to see the image form within his mind.  First, I will come safe home.  Then, when I am an old man, I will celebrate this day every year for the rest of my life.  But not just me, everyone will celebrate.  And not just nameless faces, no, my neighbors will celebrate it with me.  They will honor me, and I them.  Now, begins the transformation within each one.  The primary emotion they have felt up to this point has been fear, doubt, depression.  Slowly, that begins to shift.  They now feel the first stirrings of pride, of anticipation, of desire.  Henry continues:

 

Then will he strip his sleeve and show his scars,

And say ‘These wounds I had on Crispin's day.'

Old men forget, but he'll remember, with advantages,

What feats he did that day. 

 

More and more, he sharpens the vision.  He glorifies the inevitable scars that men will suffer on this day.  Far from being feared, these scars will show everyone that yes, indeed, I was there, and I earned my keep at the side of the King.  And the stories one can tell!  Well, suffice it to say, these stories will never lessen.  Now, Henry continues, bringing it down to an even more personal level.

 

Then shall our names,

Familiar in their mouth as household words,

Harry the King, Bedford and Exeter,

Warwick and Talbot, Salisbury and Gloucester,

Be in their flowing cups freshly remembered.

 

He singles out the men he mentions for their actions, both past, present, and future.  To those unmentioned, he has shown his willingness to do so for them as well.  He has brought everything to its most personal level.  Once more, Henry makes a transition.  The vision expands again:

 

This story shall the good man teach his son,

And Crispin Crispian shall ne'er go by

From this day to the ending of the world

But we in it shall be remembered.

 

There it is, the promise of immortality.  Not only shall you feast your neighbors for all the days of your life, but you will also be remembered as long as people are alive to tell the tale.  And it will be a tale worth telling, worth remembering.  In fact, it is worth any effort you may have to expend.  All you have to do is stand with the King.