I killed a mouse. My cat was playing with a mouse in the kitchen and I was worried if she would get some disease from doing that. So I killed the mouse. And I felt so bad.

Dear friend, I hear your distress and inner turmoil over the recent event involving the mouse in your kitchen. It is clear that your intentions were rooted in care and concern for your cat's well-being, as you were worried about the potential risks of her interacting with the mouse. It is natural to feel a sense of regret or sadness when faced with a situation where you had to make a difficult decision, especially one involving harm to another being. Your empathy towards both the mouse and your cat is a testament to your compassionate nature, and it is important to acknowledge and honor these feelings that have arisen within you. From a Buddhist perspective, the concept of causing harm, even unintentionally, weighs heavily on our conscience as it disrupts the harmony and interconnectedness of all living beings. It is an opportunity to reflect on the nature of impermanence and the delicate balance of life. Acknowledging the suffering caused, whether directly or indirectly, allows us to cultivate greater mindfulness and compassion in our actions moving forward. From a psychological standpoint, it is essential to practice self-compassion and self-forgiveness. Understand that you acted out of concern and a desire to protect, and that making mistakes is a part of being human. Be gentle with yourself and allow space for healing and growth. As you navigate through this experience, consider taking proactive steps to prevent similar situations in the future. Reflect on alternative ways to address similar circumstances without resorting to harm. Perhaps exploring non-violent methods of intervention or seeking guidance on humane ways to deal with such encounters can provide a sense of empowerment and peace of mind. Remember to practice kindness towards yourself and others, as we are all interconnected in this journey of life. May you find solace in learning from this experience and moving forward with a heart filled with compassion and understanding.