Grants are free money, means that you do not need to return. The purpose is to support individual or organization to achieve certain objective. These grants usually are provided by government or foundation. The amount of grant money is may vary according to your need. Grant also comes in different types; grant money for non-profit organization is one of them.
Running a non-profit organization is rather tough since it still require some amount of money to get it working smoothly while the essence of non-profit organization is neglecting profit income. The grant for non-profit organization will help with additional finance needed to run the organization.
The purpose of this funding is to support non-profit organization to grow bigger since most of the non-profit organizations are working in social helping field in various scales from individual, society, community and nations. The government or foundations will be helped in achieving a better world in return.
So, if your non-profit organization ever needs an additional funding, the organization can get a grant for non-profit organization by handing in a proposal stating the use of the grant and the reason for the request.