According to Osho, no - awakening is impossible without openness. Waking up and being open are the same movement: opening to existence, to the unknown, to love. A closed mind clings to the known out of fear, protecting the ego. Real awakening requires vulnerability, surrender, letting reality touch the heart; in ego's 'death' comes resurrection, intelligence, and celebration.
You cannot wake up to life if you keep your doors and windows shut; open your heart, risk the unknown, and the light comes in.