Who would you say is the most important person in your life? Your partner, or your child? Your friend, your mother? None of them, actually. It is you.
You are always around, you can always take care of yourself, support and pamper yourself, when you need it. And you are always there to love yourself.
What about the others...? Well, you can't count on or depend on anybody else to fulfill your needs. Who knows where your partner or your best friend are tomorrow?
So don't forget to be really kind to yourself. You are the most important person in your life. And unless you have learnt to love yourself, you can't truly and fully love anybody else.