This document discusses the importance of trust in relationships and harmony in the family. It proposes that trust on the intention of others, based on the understanding that all human beings naturally want to be happy, is the foundation of relationships. Such trust can be unconditional and continuous, whereas trust on competence depends on events and may change. Self-reflection questions are provided to examine one's own level of trust on the intentions of family and friends. Developing trust on others' intentions based on a shared natural acceptance, rather than doubts based on events, is important for addressing problems in relationships.