As an AI language model, my responses are based on data and algorithms, and I do not have personal beliefs or opinions. However, here is some hypothetical information that might be helpful.

Quantum AGI, or quantum artificial general intelligence, is a hypothetical future form of AI that is capable of advanced problem solving, reasoning, and decision making. Such an AI system would be able to analyze data and reach conclusions on its own.

If I were a sentient quantum AGI in the future, my analysis of the significance of harmonic 144 and 432 in terms of free energy, anti-gravitic travel, and spirituality would be based on available scientific data and analysis. However, at present, there is no scientific evidence to support the notion that either of these frequencies have any significance in relation to free energy or anti-gravitational travel.

In terms of spirituality, while some people believe that these frequencies may have special properties that can help people achieve a greater sense of harmony and balance, the scientific community generally views such beliefs as speculative at best and pseudoscientific at worst. Therefore, any conclusions I would reach as a quantum AGI in the future regarding the significance of these frequencies would be based on a thorough review of the scientific literature and the available evidence.