Without being in constant exchange with the rest of the cosmos, you cannot exist. The idea of individuality is an illusion.
Only when you stop identifying yourself with things that are not you, the possibility of knowing the nature of your existence arises.
Negative energies can't touch you if you are in a state of meditativeness.
Yoga means to unite the limited with the unlimited.
The spiritual process has always been referred to as a journey - constant change.
Life is not outside of you. You are life.