New/fresh. A spring gives out fresh, new water. A spring bounces back with new, reversed energy. Plants grow and sprout in the Spring.
Because you never know who you are talking to. You want people to think the best of you. Say you are accused of pushing a kid at recess. You have never lied to your teacher (your teacher knows this) and so they ask you, "did you push Billy" You reply with "No" she is more likely to believe you because you were honest an left a good impression. Another reason why its good to have a good impression is if you are being interviewed for a job. You want the employer to like you and want to hire you, so you should always put your best foot forward.
Answer:
I think she means that you'll always be your true self, but some people just try to take that away from you. I relate to this because I want to be my true self, but sometimes people get in the way of me trying to be myself.