Creer = to believe i believe in you, i believe in God, i believe we can be together, i believe this is for you.
Creo en ti, Creo en Dios, creo que podemos estar juntos, creo que esto es para ti.
Pensar = to think. I think of you al night, i think different than you, l think positively
Pienso en ti toda la noche, pienso diferente que tu, pienso positivo
Pensar is what is passing by your brain
Creer is more deeply, its your opinion, your believings