When Lord Krishna went to Pandavas, all the children of Pandavas were saluting Him and taking his blessings. He wished all of them a long life and all success. But when Abhimanu went and saluted Hpm, he wished him all success only but not a long life. There itself many elderly people got an indication about the short span of life of Abhimanu. His mother tried once or twice to get the long life wish from Krishna to his son but was never successful.
Knowingly or unknowingly if many are wishing our prosperity, the chances of our prosperity will be more. Definitely, the wishes we get will make us more confident. So when we are about to start an event or a work. we should go to a very elderly man/ woman and honour him and get his blessings and best wishes. That will make our journey fruitful.
It is very common in our society that if something bad happens with someone then they blame that some person must had made a curse on their family. They even do some rituals or follow some techniques to remove that curse.
So if the good wishes or curses are effective and have practical implications then people will definitely believe in them.
Knowledge is power.
In the same Mahabharat another scene. Dhuriyodhana came to know that Lord Krishna about to come to his courtyard for some compromise on Pandava's issue. So, he ordered all his court people not to give respect to Krishna by standing up when is entering. But known this Krishna directly went to Vidhura's palace and had some discussion. After that he accompanied with Vidhura to Dhuriyodhana's courtyard. When Vidhura comes first in the coutyard by seeing him, Dhuriyodhana raised himself to offer his respect to his paternal uncle and by seeing his raising from his seat everybody stood from their seats. Both dhuriyodhana and others gave respect to Lord Krishna. This was incident but the thing here is though dhuriyodhana was considered bad, he gave respect to his paternal uncle, an aged person.
"Life is easier when you enjoy what you do"