The Ancient Sages talked about rebirth in every moment. In every moment we choose again to create, to remain the same, or to destroy. In other words, we continually have positive, neutral or negative thoughts, which become positive, neutral or negative realities.
Each moment is unique. The secret is to stay totally aware in the moment. To maintain and develop existing and new positive thoughts, and to eliminate and destroy existing and new negative harmful thoughts.
It is easy to explain to a 5 year old, but can an 80 year old practice?
