Yes! You need only that one person whom you can share your feelings with!!.
Of course you have your parents, siblings each and every time, but there are some things in your life or in your mind which you cannot always share with your family, may be because you think your sorrow will affect them, or it will unnecessarily bother them. You always draw a line of what things you share with them for such reasons.
So... the first thing that crops our mind is whom do we choose for being that one person?
Let’s see... BFF? Girl/boyfriend etc.?.. Well. It totally depends on you.. I hear people saying 'you meet the best people in your school or college life'. If you ask me, I met some of the best people in my professional life too. That person is not someone you can choose based on gender, age, distance. or your relationship with him/her...It’s like 'OK, you are the one who has seen me at my best as well as at my worst or you are the one whom I can trust upon and I have spent enough time around you or I have felt that level of comfort with you which I've never felt with anyone before!'. There you are!! This is the ONE!!!
The only thing here important is "understanding". You will have plenty of people around giving you random advices, judging you... But this person will listen to you and understands you. Half of your problems will vanish if you have someone who listens to you and doesn't blatantly judge you for your actions.
This is someone you can really rely upon when you find yourself down and out. The reason I stress upon just ONE person is... it’s difficult to trust people with your life these days... I am trying not to sound pessimistic or misanthrope... Actually, it takes a lot of time to finally realize that this is the one I was searching for. Some people can very easily betray you. You can just put yourself in trouble if that person isn't worthy enough to share everything in your life.It kind of becomes risky, because that person knows your dark secrets too ;)
I wrote this post keeping in mind the person whom I consider my "ONE"... Finding that "ONE" has truly changed a part of my life. If you already know your ‘ONE’, there's nothing more marvelous than that, if you don’t, I hope you figure out that someone pretty soon!!