Dreaming of a massive cross pendulum outside an old farmhouse can symbolize a few key themes. The farmhouse often represents stability, comfort, or your roots, while the pendulum may signify the passage of time or a sense of balance in your life. The fact that it is a cross could indicate themes of sacrifice, faith, or a crossroads in your life.

The headstones below the pendulum could represent memories, the past, or aspects of your life that you may feel are 'dead' or no longer serving you. This imagery may suggest that you are at a pivotal moment where you need to reflect on your past choices and how they affect your present and future.

Overall, this dream might be prompting you to consider what you need to let go of to find balance and move forward. It could also be a call to reflect on your beliefs and how they shape your current path. Think about any decisions or changes you're facing in waking life, and how this dream may relate to those situations.