Why do people leave suicide letters?

People who leave suicide notes often feel a need to explain their actions, make final requests, ask for forgiveness, express their feelings and motivations, convey regrets, communicate personal thoughts, provide reasons for their decision, share personal matters with loved ones or specific individuals, address misunderstandings, say goodbye, resolve unfinished business, share personal experiences, provide instructions, seek justice, confront others, offer gratitude, share their perspective, document their state of mind, leave warnings or advice, or for closure and remembrance.

Writing a suicide note can provide a form of catharsis or psychological release, allowing individuals to share their deepest innermost thoughts and emotions and feel they've been heard. While not all individuals leave suicide notes, those who do are communicating that something inside needs to be acknowledged and understood by leaving those words behind them.