Our spirits. . . require nourishment. Just as there is food for the body, there is food for the spirit. The consequences of spiritual malnutrition are just as hurtful to our spiritual lives as physical malnutrition is to our physical bodies.
When I enter into nirvikalpa samadhi, most can see this light, or feel it. This light creates very powerful, steady spiritual transformation. The reason you are here is to sit in this light.