Let new imagination fill the empty space.
Allow the new ideas to transform the way you think.
Rid of the cage that limited your thinking.
Stay true to your values/beliefs especially if some new ideas requires you to go beyond your values/beliefs.
Some benefits for being open-minded
Letting go of control. When you open your mind, you free yourself from having to be in complete control of your thoughts. You allow yourself to experience new ideas and thoughts and you challenge the beliefs you currently have. It can be very liberating to look at the world through an open mind. When you open your mind it like you leave the cage that limited your thinking.
Strengthening yourself. Open-mindedness provides a platform on which you can build, piling one idea on top of another. With an open mind you can learn about new things and you can use the new ideas to build on the old ideas. Everything you experience can add up, strengthening who you are and what you believe in. It's very hard to build on experiences without an open mind.
Gaining confidence. When you live with an open mind, you have a strong sense of self. You are not confined by your own beliefs, nor are you confined by the beliefs of others. For that reason, you are able to have and gain confidence as you learn more and more about the world around you. Open-mindedness helps you to learn and grow, strengthening your belief in yourself.
Being honest. There is an honesty that comes with an open mind because being open-minded means admitting that you aren't all-knowing. It means believing that whatever truth you find might always have more to it than you realize. This understanding creates an underlying sense of honesty that permeates the character of anyone who lives with an open mind.
For some, being open-minded is easy; it comes as effortlessly as breathing. For others, having an open mind can be more of a challenge, something that they have to work on and make an effort to obtain.
Source: https://www.positivelypresent.com/2010/09/7-benefits-of-being-openminded.html