1. Love and companionship: Pets can bring unconditional love and companionship. They often become companions, friends and family members in people's lives, and can give emotional support and comfort to their owners. Keeping pets can bring emotional satisfaction and happiness, and accompany people through loneliness, stress and difficulties.

2. Reduce stress: interacting with pets can reduce stress and anxiety. Studies have shown that playing, touching and interacting with pets can reduce stress response, reduce stress and anxiety and improve emotional state.

3. Exercise and health: Keeping pets may make owners pay more attention to their health. For example, walking dogs requires regular outdoor activities, and keeping pets will encourage owners to do more outdoor activities, such as walking and running, thus improving health.

4. Social communication: Pets can also promote social communication. For example, communicating with other pet owners while walking the dog and participating in pet social activities can increase social opportunities and social circles, thus improving social communication and interpersonal relationships.

5. Education and sense of responsibility: For some families and children, keeping pets can also cultivate a sense of responsibility and education. Keeping pets requires care, feeding and cleaning, which helps to cultivate children's sense of responsibility and care for others.

These factors may make keeping pets magical for many people, become a part of their lives, and bring them many benefits such as fun, companionship, reducing stress and promoting health. However, keeping pets also needs to take into account personal lifestyle, economic situation and time investment, and take care of and manage the needs and welfare of pets responsibly.