Pillows: nutshell, security, insecurity, operating system, human, being, survival, alive, infinite, process, needs, wants, desires, adaptation, survive, thrive, life, person, system, clover, tricycle, wanting, adapt, develop, reward, motivation, challenge, struggle, never ending, achievement, success, symbol, business, competition, promotion, leadership, ambition, inspiration, performance, strategy, map, road, accomplishment