A small story:
One guy during the lunch time in his office, opens his lunch box and says, “Oh God, today again the same potato, brinjal and tomato rice.” Anyhow he eats it. Next day, again he opens his lunch box and starts crying, “Same potato, brinjal and tomato rice!” All his friends are really worried now. Third day again he opens his lunch box and exclaims, “Oh God, same potato, brinjal and tomato rice!” His friends started asking him, “Your wife doesn’t like you? Is there any fight going on between you and your wife? Why is she sending you the same food everyday knowing that you don’t like it?” That fellow says, “No I am not married. I cook for myself.”

Buddhi – intelligence – means knowing clearly, “Anything I created I can destroy and create something new.” Every time you think, “I cannot, I cannot, I cannot”, you are giving strength to your ignorance. When you say, “I can, I can, I can”, you are giving strength to your buddhi. Clearly recognizing that your patterns were created by you, and can be destroyed, is acting from buddhi.