The greatest science–that of the mind is only revealed through concentrated effort.
True concentration is to conscious of nothing else and will lead to intuitive perception & immediate insight into the nature of the object concentrated upon. Ease and perfection are gained by repetition. The mind is an engine whose power is undreamed. Thought is an omni-working power, ruler & creator of all form & all event occurring in form. Physical energy is nothing in comparison with the omnipotence of thought because thought enables man to harness all other natural power.
In 34, 35, 36 Haanel says to always concentrate on the ideal as already existing fact.
We must realize and learn not to mistake symbols for reality. We want to be interested in causes, rather than effects. We want to concentrate on the realities of life and them we will not be disappointed in results.