Remaining in the present moment
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It is stupid to live either in the frustration and successes of the past or in the projections of fears and hopes for the future. Remaining in the present moment, unconcerned with happiness or unhappiness, is the ‘within’ – the Kingdom of God, where there is nothing to be sought.
Advaita on Zen and Tao – Insights on Huang Po and Lao Tzu by Ramesh Balsekar: Page 61.