Shephard strives to understand what motivates Charlie and why he survived being frozen. At one point, Shephard begins to sing "Heart of Gold", inspiring Charlie to sing one of his own songs. Charlie's line drawings in the ground resemble a bird, matching body markings on his chest. When the base's helicopter strays over the roof of Charlie's area, he takes on an obsessive zeal as he climbs towards the roof. Shouting the word "Beedha", he lifts his arms towards the helicopter in a sign of worship. Even though the helicopter pulls away from the dome, Shephard knows that Charlie can now think of nothing else.