Life? Existence? Both are characterized by constant collisions and fluctuations. Every time we're knocked down, we tirelessly search for ways to get back up. Yet, life often seems like a horizontal line, pushed down, then we work hard to move upwards, reaching back to that horizontal level, then to be pushed down again. This repetitive pattern can be quite draining. After all, we never truly transcend that horizontal state; it remains consistently flat. Maybe this is what people refer to as happiness.