Ghandi was making the point that there is enough food and water, shelter, etc. (basic needs) for the needs of every person. There is not, however, enough natural resources to fill the want of people's greed. In order for everyone to have enough, no one can be greedy with their resources or wealth of any kind. If resources are shared equitably, no one would go hungry or thirsty, or be without clothing, shelter or medical care. But Only if people are not greedy.