Quick Note: This thread is not for Pros, but for new investors trying to figure out the stock markets.
Quick Note 2: There is a existing thread on similar lines but it sounds garbled to me. We need a simple English solution to discuss this subject.
Admin Note 3: Behavioral Finance involves using words that are blunt. Those exposed to Charlie Munger will be able to easily tell you he does not mince words. So if I am to continue this project, I will not be able to mince words. There will be brutal words. - Fair Disclosure.
For those interested, Prof Sanjay Bakshi runs a Behavioral Finance Class at MDI Gurgaon. But for new investors, there should be a launch pad, so I am hoping to start a small effort here.
I am not qualified, but my teacher Charlie Munger is rock solid. I am hoping to slowly share what I learnt by listening to, and from reading his books.
I feel on VP while we have a lot of discussions on stocks (and it’s a wonderful thing), but, investing is in some people’s opinion (myself included) is 50% Excels and 50% Behavior. So by not paying attention to behavioral finance to quote my teacher Charlie Munger “Is like being a one legged man in an ass kicking contest”
First; what is Behavioral Finance.
So as is clear there have to be two aspects to it;
a. Behavior - You. Your mind. Your rationality.
b. Finance - Reasonable number skills. But I assure you, being an excel ninja is not needed to be reasonably successful in stock markets 
So here on this thread I will stick to behavior. The errors if any will be mine, of knowledge, of limited English writing skills, and so on, so please pardon me for not being perfect in this concept, but I do think even if I get across 10% right it will expose you to the wonderful world of behavioral finance.
And I assure you, Behavioral Finance is real. Just as real as economics or finance. But this works more like a tandem jump or mash of stoicism, self awareness and rationality.
So, imagine a finance post and the below poems are the first learnings to deeply understand Behavioral Finance (it’s ok to laugh at this); they are so far away from balance sheets; I will close this post at the end with some poems, and continue further with as much time I can commit, it will be slow though, if some people here would like to explore this subject.
My most favorite poems on behavior, which I think need to be read 100 times in 100 days to fully grasp (1 reading is reading, 10 readings and the words start to make sense) and the rest of our life to try and to as much as possible, implement.
A.E. Houseman–
"The thoughts of others
Were light and fleeting,
Of lovers’ meeting
Or luck or fame…
Mine were of trouble,
And mine were steady;
So I was ready
When trouble came.”
and
Rudyard Kipling
If—
If you can keep your head when all about you
Are losing theirs and blaming it on you,
If you can trust yourself when all men doubt you,
But make allowance for their doubting too;
If you can wait and not be tired by waiting,
Or being lied about, don’t deal in lies,
Or being hated, don’t give way to hating,
And yet don’t look too good, nor talk too wise:
If you can dream—and not make dreams your master;
If you can think—and not make thoughts your aim;
If you can meet with Triumph and Disaster
And treat those two impostors just the same;
If you can bear to hear the truth you’ve spoken
Twisted by knaves to make a trap for fools,
Or watch the things you gave your life to, broken,
And stoop and build ’em up with worn-out tools:
If you can make one heap of all your winnings
And risk it on one turn of pitch-and-toss,
And lose, and start again at your beginnings
And never breathe a word about your loss;
If you can force your heart and nerve and sinew
To serve your turn long after they are gone,
And so hold on when there is nothing in you
Except the Will which says to them: ‘Hold on!’
If you can talk with crowds and keep your virtue,
Or walk with Kings—nor lose the common touch,
If neither foes nor loving friends can hurt you,
If all men count with you, but none too much;
If you can fill the unforgiving minute
With sixty seconds’ worth of distance run,
Yours is the Earth and everything that’s in it,
And—which is more—you’ll be a Man, my son!