You must watch the pictures that you paint with your imagination. Your environment and the conditions of your life at any given time are the direct result of your own inner expectations. If you imagine dire circumstances, ill health or desperate loneliness, these will be 'automatically' materialized, for these thoughts themselves bring about the conditions that will give them a reality in physical terms. If you would have good health then you must imagine this as vividly as you fearfully imagine ill health.