By the establishment of truthfulness the Yogi gets the power of attaining for himself and others the fruits of work without the works.
In plain words: When a person becomes completely truthful, their words come true. The teacher says such a person can bless or heal others just by speaking.
When this power of truth will be established with you, then even in dream you will never tell an untruth. You will be true in thought, word, and deed. Whatever you say will be truth. You may say to a man, "Be blessed," and that man will be blessed. If a man is diseased, and you say to him, "Be thou cured," he will be cured immediately.
Namaste.
A calm guide to life, the mind and the old teachings.