What is the food best suited to special needs?

As each human ego differs in manifested life from every other, it needs a different experience, and to each is given the material from which it can derive the food best suited to its special needs. 

Some can only grow when their roots have struck deep in the black earth of sin―

Others require the knife of the pruner freely applied to them―

While to others only sunshine and the dews of heaven seem necessary—

To each the best and most suitable surroundings are given.