The hero is a mind of such balance that no disturbances can shake his will, but pleasantly, and, as it were, merrily, he advancesto his own music, alike in frightful alarms and in the tipsy mirth of universal dissoluteness.
We don’t need more money, we don’t need greater success or fame, we don’t need the perfect body or even the perfect mate-right now, at this very moment, we have a mind, which is all the basic equipment we need to achieve complete happiness.
Louis Pasteur, the great scientist, said "chance favours the prepared mind", which is a posh way of saying 'do your homework', but it's an excellent piece of advice.
You know, in the case of most of us, the mind is noisy, everlastingly chattering to itself, soliloquizing or chattering about something, or trying to talk to itself, to convince itself of something; it is always moving, noisy.