There is nothing that we can do with our past because it is over, there is only so much we can do to worry about our future because it is not yet here, but there is plenty we can do to enjoy our present because it is now and is happening. Do not dwell on your past too much.
Two monks were on a journey to a monastry in a neighbouring village. Their journey led them through a mountanous terrain with thick forests. They reached a point where they had to cross a river. When they reached the shallowest point in the river they saw a woman standing and contemplating looking at the river. While one monk did not even look her direction, the other monk walked up to her and asked what she was thinking looking at the river. She replied saying she did not know if she had the courage to walk on the rocks and cross the river. The monk did not think further. He just lifted the woman in this strong arms while the other monk watched in shock and started crossing the river with the woman in his arms. When they reached the other side of the river the woman and the monks parted ways with the woman thanking profusely the monk who carried her across the river.
The monks continued with their journey. As they reached the monastry, the monk who did not offer to help the woman turned and asked the monk who did help – “Are you sure you can enter the monastry now? You carried a woman in your arms!”. The monk who helped answered – “I guess that should be okay – I only carried her in my arms and have not thought about her ever since I helped her – but it looks like you have been carrying her in your mind for the rest of our journey – so the better question here is – should you be allowed to enter the monstry?”