It is difficult to succeed alone. Usually you need a team to succeed.
It is same with creating change.
If you have good relationships who can guide you, help you, keep you positive then you multiply your physical, mental, emotional and spiritual resources. They make you happy. They make you strong and resilient. They decrease stress. They help you get over difficult times. They help you achieve things you could not have achieved alone. They help you keep to you goals.
They fuel success.
They fuel change.