As long as you pursue the truth, the truth will burn within your heart.
Humans are social animals and cannot survive in isolation. Everything we need in our daily lives depends on the contributions and labor of others. If we cultivate a sense of gratitude in our hearts, we may improve our isolation from society. The purpose of interacting with others is not to please them, but to understand gratitude and reciprocate, which also helps us live better in the future.
Another effective method is to bring your attention back to the present moment. When you observe your thoughts, you will find that they are mostly focused on the past or the future, rarely on the current moment.
If there is a pile of apples on the table, people often care more about how many they get than how many there are in total. If a workplace has a pile of tasks, people often care more about how much they did than the total amount of work. The world was originally simple, but it became complex due to interests. Human hearts were originally pure, but they became narrow due to conflicts over interests.
The most painful experience is wandering between holding on and letting go. Once you truly decide to let go, you will instead feel a sense of relief. From then on, both pain and love are buried deep in your heart. Life inevitably involves pain and injury. Whether you once held on to things or let them go, those experiences do not completely disappear. Although some events cannot be revisited, some memories are difficult to untangle, and some people can only be buried forever, this is the normal state of life.