The Chakra is derived from a Sanskrit word meaning Spinning Wheel. The 7 Chakras are the energy centers in our body in which energy flows through.
The base chakra is very important for life on earth, feeling grounded and connected to our physical life and self. It is essential to manifest your dream in the physical earthy realm. The base Chakra relates to your sexuality in a physical, passionate sense.
The sacral chakra is about your relationship with everything outside of yourself, including people, money, etc. It relates to your sexuality in an emotional sense.
The solar plexus is your inner sun (light), and it is about your relationship to yourself - how you feel about yourself - so from here comes self-esteem, self-confidence, self-worth, or self-doubt. This is also the seat of your power. The more genuine self-worth you feel the more empowered you are, the more self-doubt you have the less empowered you feel.
This is the center for love and compassion. Here we reach the level of higher feelings rather than emotion. Rose pink denotes divine love in the heart chakra. Green is a healing color.
The throat chakra is about communicating, self-expression, and speaking your truth. It is also an area of willpower - putting things into action, not just thinking about them and feeling them.
The third eye chakra is related to the higher mind, original thought, and clairvoyant abilities.
The crown chakra is your connection with your God, spirituality, and Higher Self. There are many gateways in the crown chakra which, when open, connect you as gateways to other dimensions and the cosmos.
Aura or human energy fields are the layers of energy that interconnects all other subtle bodies and also acts like a shield covering and protecting our more refined subtle bodies like the mental, emotional, and spiritual, and astral bodies.