The three-point design of the top half is like the north point of an old sailor's compass. This shows that a Scout is able to point the right way in life as truly as the compass points it in the field.
The three points of the trefoil are like the three fingers used in the Scout sign. They stand for the three parts of the Scout Oath: duty to God & country; duty to others; duty to yourself.
Eagle and Shield
The eagle and shield, national emblem of the US, stand for freedom and a Scouter's readiness to defend that freedom.
The two stars stand for truth and knowledge of the Scouting movement. They guide you by night and suggest a Scout's outdoor life
The scroll is turned up at the ends to remind us of the corners of a Scout's mouth raised in a smile as he does his duty. The Scout motto is printed across the scroll.
The knot attached to the bottom of the scroll represents the Scout slogan, Do a Good Turn Daily.