Quietism, as a philosophy and practice within Daoism, emphasizes the importance of letting go and embracing simplicity in order to achieve inner peace and harmony. This concept can certainly be combined with other spiritual or religious beliefs, as it is ultimately a way of living and approaching life rather than a specific set of religious beliefs.

In fact, many individuals who practice Quietism also incorporate elements from other spiritual or religious traditions, such as Buddhism or Christianity. This is because Quietism is not a prescriptive belief system, but rather a way of being in the world that can complement and enhance other beliefs.

One of the key principles of Quietism is the idea of letting go of attachments and desires. This can be seen as a form of detachment, which is also a central concept in Buddhism. By letting go of our attachments to material possessions, relationships, and even our own thoughts and emotions, we can free ourselves from suffering and find inner peace.

Similarly, the emphasis on embracing simplicity in Quietism can also be found in other spiritual traditions. For example, the concept of non-attachment in Buddhism also encourages a simple and minimalist lifestyle, as it allows for a clearer and more focused mind. In Christianity, the idea of living a simple and humble life is also emphasized, as seen in the teachings of Jesus.

Furthermore, the practice of meditation, which is often incorporated in Quietism, can also be found in various spiritual and religious traditions. Whether it is through mindfulness meditation in Buddhism, contemplative prayer in Christianity, or Taoist meditation in Daoism, the goal is the same – to quiet the mind and connect with our inner selves.

It is important to note that while Quietism can be combined with other spiritual or religious beliefs, it is not about syncretism or blending different beliefs together. Rather, it is about finding common ground and incorporating practices and principles that align with the core values of Quietism.

In conclusion, Quietism can certainly be combined with other spiritual or religious beliefs. Its emphasis on letting go and embracing simplicity can complement and enhance other beliefs, while its practices, such as meditation, can be found in various traditions. Ultimately, Quietism is about finding inner peace and harmony, and how one chooses to achieve that can vary based on personal beliefs and preferences.