There are actually some wholesome mental states that are conducive to concentration. The most notorious are piti (translated as rapture, joy) and sukha (content

There are actually some wholesome mental states that are conducive to concentration. The most notorious are piti (translated as rapture, joy) and sukha (content, pleasure). Listen to this guy, may be useful http://dharmatreasure.org/piti-joy/ http://dharmatreasure.org/piti-joy/ (his superb book: http://www.amazon.com/dp/0990847705 http://www.amazon.com/dp/0990847705 ).