In the self-help book about concentration the author writes:

When you walk out into the country and inhale the fresh air, studying vegetation, trees, etc., you are concentrating. When you see that you are at your place of business at a certain time each morning you are developing steadiness of habit and becoming systematic. If you form the habit of being on time one morning, a little late the next, and still later the following one, you are not developing concentration, but whenever you fix your mind on a certain thought and hold your mind on it at successive intervals, you develop concentration.

Does "country" in the first sentence mean a place which is opposite to town/city? For example: My grandma lives in the country? Or maybe "country" above means just some green area?

Does "successive intervals" mean the same as "regular intervals"?
Hello Newguest,

I would say that "walk out into the country", as it is used here, means any non-urban area where the presence of man is noticeably less.

Successive intervals means consecutive intervals - not regular intervals.

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JohnParissccessive intervals means consecutive intervals - not regular intervals.John

I'm still not sure I understand "successive/consecutive intervals".

Does it say something like "very often with short breaks"?
Successive intervals - intervals which follow each other without interruption

OK. Thanks for the answer.
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