I just thought this old tea makes me quiet, makes me not wanting, not want another kind of tea unlike the younger shengs. Those encourage creativeness, new ideas and life.
I saw the impact of old shengs on a mind while drinking such (about 30 years and more) on a tea gathering with friends. Not only my mind. Once an old tea was served, the chatter got less loud and the topic changed to more philosophical. The talk was more and more into depths life, into intangible matters.
Ohh the bitterness of tea and life sometimes gets enjoyable. This is only commenting the tea I just had. A very old tuo that still can age a lot.