Shikantaza, also known as "just sitting" meditation, is a central practice in Soto Zen Buddhism. It is a form of silent meditation where the practitioner sits in a relaxed but upright posture, with their eyes slightly open and their attention focused on their breath.

The purpose of shikantaza meditation is to cultivate a state of "just being" or "just sitting" without any specific goals or expectations. It is a practice of simply being present in the moment, without trying to control or manipulate one's thoughts or experiences.

In Soto Zen, the ultimate goal of shikantaza is to experience the true nature of reality, also known as "enlightenment" or "awakening." This is achieved by letting go of all attachments and concepts, and fully immersing oneself in the present moment.

Through shikantaza, practitioners learn to observe their thoughts and emotions without judgment or attachment, allowing them to pass by like clouds in the sky. This helps to develop a deeper understanding of the impermanent and constantly changing nature of reality.

Shikantaza also helps to cultivate a sense of inner peace and stillness, as well as a deep connection to oneself and the world around us. By letting go of our thoughts and desires, we can experience a sense of oneness with everything and everyone.

Another important aspect of shikantaza is the cultivation of mindfulness. By focusing on the present moment and our breath, we learn to be fully aware and attentive to our surroundings, thoughts, and emotions. This mindfulness can then be applied to our daily lives, helping us to be more present and engaged in our actions and relationships.

Shikantaza is not a practice that can be mastered quickly or easily. It requires dedication, patience, and a willingness to let go of our ego and attachments. However, with regular practice, it can lead to a deep sense of peace, clarity, and understanding of ourselves and the world around us.

In conclusion, the purpose of shikantaza meditation is to cultivate a state of "just being" and to ultimately experience the true nature of reality. It helps to develop mindfulness, inner peace, and a deeper connection to oneself and the world. It is a powerful practice that can lead to profound personal growth and transformation.