Armor 
To dream that you are wearing armor represents the methods you utilize to protect your feelings and emotions from harm. You are afraid of letting others get too close to you, so you erect barriers to guard your inner self.
Breastplate
Donning a breastplate in a dream symbolizes social status or just a feeling of being invincible. Dreaming of a breastplate foretells a move up in status if you are on an elevated area such as on a large horse or speaking to people from a high balcony. The breastplate can also symbolize a feeling of invincibility if your dream involves fighting evil or conquering an enemy. It may be a good time to tone down your voice and restrain from being outspoken.
- 1