But how can I attain the knowledge of the heart? You can attain this knowledge only by living your life to the full. You live your life fully if you also live what you have never yet lived, but have left for others to live or to think.
You will say: “But I cannot live or think everything that others live or think” But you should say: “The life that I could still live, I should live, and the thoughts that I could still think, I should think.”
It appears as though you want to flee from yourself so as not to have to live what remains unlived until now.
But you cannot flee from yourself It is with you all the time and demands fulfillment.
If you pretend to be blind and dumb to this demand, you feign being blind and deaf to yourself This way you will never reach the knowledge of the heart. ~Carl Jung; The Red Book; Page 233.