Along with the advantages of being in the Veil, there are also 3 powers acquired over the course of the game that will be of use to B.J in his quest. The powers, displayed and starting at the red one on the left going clockwise are Empower, Shield and Mire. The green-blue eye at the bottom serves to indicate whether or not B.J is in the Veil. You can use all three of the veil powers at the same time to be pretty much invincible, but it will use your veil energy very quickly, within 3-8 seconds.