Aura.

Who you are as a person generates an aura from you're energy body. The energy body consists of 7 Chakras which prana energy flows through and out into you're energy field.
This field is you're own energy aura, this is how people feel who you are, and if someone has trained long enough, those people can pick out where you are blocked and help you release that blockage. Thus.. making you happier.

Different colours represent different parts of the field, (red is the root/base chakra, orange is the sacral chakra) and the strength of these colours will determine how open you are in those areas.
Each Chakra holds different emotions.
So for example, you maybe feeling ungrounded, up in the air and confused about where you are. This can relate to the base chakra, as it's this energy that is grounding, it connects you to the earth and where you came from. This energy balances you out, grounds you and makes you feel you're direction of life.
Each Chakra has a range of emotions, and depending on the blockages, will determine how open you are in those areas.
Clearing the blockages in each chakra will generate a colourful and bright energy field, thus, making you become more powerful and happy in almost any situation you are in. You will flow freely and positivly, if you're own energy field is so colourful, then you are able to relate to everyone elses field, and you will be a positive in anothers life.

Theres so many ways of self developing that it's idiotic not to!
It just takes that first step of seeing someone elses perspective.
Not just pretending to see someone elses view, thats just a delusion, when you maybe want to end a fued or just become sick of something, you say "okay I get it!" that's not really it at all.
If you can really see someone elses perspective on something, that brings forth a strong connection between the both of you.
People become so agressive and insecure that theres no real bonding at all, just people who are tolerent, and thats "the way it is."
For some thats okay, but really.. you are just missing out.