This sutra says:

Learn from it the lesson of harmony.

Whatsoever beautiful moments, whatsoever ecstatic moments, happy moments you have had, collect them, cherish them, live with them, live them. You will become more sensitive to happiness. Happiness will be more attracted toward you, love will happen to you more, meditation will come to you more easily. Life will become a benediction; existence will become a celebration. But you have to create a heart, a happy heart.

And then, in the fragmentary experience of bliss, find the common note. A child picking flowers, a young man loving a girl, an old man sitting under a tree meditating – they all say it is blissful. Then there must be something common to all of them. On the periphery, from the outside, nothing appears to be common: a child picking flowers, a young man loving a girl, an old man chanting a mantra. There seems to be nothing in common between them. But if they all say “This was blissful!” there must be something in common. Find that common element. Find the one thing that is always there and without which they cannot say that all these moments are blissful moments.

It may be that the old man will deny any common element. He may say “This young man is just foolish. There is nothing in girls – only bones and flesh and everything dirty. This young man is just foolish. He is wasting his time.”

Or the young man may say “This small child picking flowers is living in a fantasy. It is not real. When he becomes more knowing he will throw these flowers away. This is stupid! Collecting flowers is useless, he is wasting time. He is ignorant.”

But, still, there must be something common to all of them. If the old man says that the young man is foolish, or the young man says that the child is foolish, this simply means that for the old man life has not yet become a unity. It simply means that the old man is still angry with his own childhood. He couldn’t absorb it into his life current. That means the old man is still repentant, angry with his youth. His youth has not become a part of his life. The old man is fragmented, divided.

If the old man is really undivided, if he has been searching for the common element in all experiences… Because that is wisdom: to find the common element in all experiences is wisdom. That is the essential. One must realize it. If the old man has come to really realize, he will see that when he was sitting with a girl in deep love, the same thing was happening that is now happening in his meditation. When he was picking flowers in the garden as a child, or playing with pebbles on the seashore, it was the same thing.