Let's start talking about the subconscious mind strength. I know that the word subconscious it is not usually used in psychology, that you'll read about conscious, pre-conscious and unconscious, but I rather simplify the vocabulary distinguishing only two states:
The conscious: that is our awake state, and the subconscious: the deepest levels of the mind, the level of our powerful inner mind.
Now I would like to transcribe you the testimony of one of my students:
"For fifty five years I had being dreaming to have a couple; in several opportunities I had short period relationships,that vanished in the air.
It had finally arrived to the idea that I was going to be a spinster for the rest of my life. But after practicing during one year as you taught me, the incredible thing happened: my personality began to change little by little, as all my friends commented me.
At this time I can tell you with great happiness that I have already been married for one month with a wonderful man that has changed the sense of my life. Nora
All of us in some moment of our lives, make plans for the road that we seek to travel in our existence, and we tell ourselves things as:
* "I would like to get marry" (as Nora said to herself during fifty five years)
* "I would like to have several children"
* "I would like to be a healthy person"
* "I seek to have a monthly income that allows me to save every month a small amount to use in trips or buy goods, etc.
Perhaps after this we could think that the best we can do to achieve our goals is that we follow an university career. So we will do it, and we will work with all the strength of our will, with all our physical energy, with all the acquired university knowledge, and with that maximum ten percent of our brain capacity that we can use when we are awake, to achieve our goals.
Let us suppose now for a moment that our inner mind, to our powerful subconscious mind, due to some unpleasant experience that we have had in our childhood, decides that:
* He doesn't want to get married
* He doesn't want to have children
* He doesn't want to be healthy, because he likes to be cared of
* He doesn't want to have too much money to avoid the risk of being abducted
And to accomplish it he uses that ninety percent of our cerebral capacity that we don't usually use.. Who do you think will win?
I believe that you will have no doubts that in a fight of nine against one, the subconscious mind is the one that's going to win. And that perhaps, at most, you will get transitory successes (as Nora did).
After reading this paragraph, you will surely begin to realize the reason why in many opportunities, you might say to yourself: "now I will go toward the north and will finish going toward the south...
And then again you will try to go to the north and once again you will go toward the south... Because our good purposes and even our hard work can very well be beaten by the strength of the powerful subconscious mind.
But then we have the enemy at home! you might think... And the answer some times will be a YES, and some times will be a NO.
Our subconscious is not really our enemy, because he will never do something that he considers noxious for us. But his point of view can coincide or not with the one that we have NOW; and his strength can become our biggest ally, or our worst enemy.
You should notice that I have highlighted the word NOW, because the decisions that the subconscious mind take, cannot be defined as simply capricious, but adjusted to the subconscious logic in the moment that they were taken (maybe when we where 5 years old).