Most of us know that a human heart has 4 separate chambers. But rarely anyone has observed that a human brain has infinite number of rooms. I am not talking about right hemisphere or left hemisphere. I am talking about virtual chambers that have been build up by owner of the house (brain).
These rooms are occupied by memories, goals, dreams, emotions, pains and other feelings.
How joyful or painful our next moment or time will be is determined by these rooms. If we let our thought or feelings enter in a room full of some adorable memories, our next moment becomes full of pleasure and feels like staying there for good.
On the contrary, if we let our thought enter a room, whose walls have painting of failure or some other painful memories, the next moment becomes terrible and even though that thought may try to flee that room, it may find itself shackled there.
Similarly, there is one room called "ambition room", which is gymnasium or classroom of our thoughts. When our thought enters here, he is taught how to proceed further.
So, we must try to lock the rooms which are shelter of pain, torture and negativeness. We can not demolish these rooms. These rooms are permanently built in the house. These can be demolished only when the entire house undergoes some accident.
What we can do is only lock these rooms and throw the keys where it is hard to find them. Apart from this, we must persuade or force our thoughts to spend a large part of entire day in ambition. Because it is this room that will decide the fate of next coming moments