There are hundreds of different types of agate - all types of agate stones are all about "balance and harmony in the body and mind".
General agate mineral rock meaning includes composure and maturity. Many types of agate stones are protective, helping to protect against excessive negativity. Agate meaning at the heart of agates with regular, consistent banding includes soothing energy, harmony and peace. Agate meaning at the heart of agates with irregular, inconsistent banding includes stimulating energy that encourages action and decisiveness.
Agate chakra, in general, is wonderful for the aura. Agate vibrations eliminate negative energies and encourage positive energy for balance and harmony, in keeping with agate crystal meaning.
Use your agates to activate, cleanse and balance your chakras. Either lie down and place the appropriate type of agate on the appropriate chakra, beginning with the root and working your way up.
Place your agate in any area of your home that needs gentle healing and more expression. If you are working with tumbled agate stones, then go by the feng shui element meaning of the specific color of agate. For example, the blue lace agate will be excellent feng shui in the East (Health) and Southeast (Wealth) bagua areas of your home; while the nourishing fire agate can create wonderful feng shui energy in your Southwest bagua area (Love and Marriage).