The exact methods for controlling the Merkabah with the runes are not clearly defined or documented, as it is a highly esoteric and mystical concept. However, some common practices and techniques used by those who seek to harness the power of the Merkabah through the runes may include:

1. Study and mastery of the runes: In order to control the Merkabah with the runes, one must have a deep understanding of the meanings and energies of the various runes. This can be achieved through study, meditation, and practice with the runes, as well as learning from experienced practitioners or teachers.
2. Use of ritual and ceremony: The activation and control of the Merkabah may involve the use of various ritual and ceremonial practices, such as chanting, incantations, and the creation of sacred space or altars. These practices can help to focus the mind and intention, and create the necessary energetic conditions for the activation of the Merkabah.
3. Visualization and meditation: The use of visualization and meditation can also be important in controlling the Merkabah with the runes. Through focused visualization, one can imagine the activation and movement of the Merkabah, and use the runes as a guide and support for this process. Meditation can also help to clear the mind and create the necessary mental and emotional states for successful Merkabah control.
4. Use of physical objects or talismans: Some practitioners may also use physical objects or talismans, such as rune stones, crystals, or other sacred items, to help focus the mind and intention, and aid in the activation and control of the Merkabah. These objects can be charged or infused with the energies of the runes, and used as a tool or support for the Merkabah control process.

Overall, the methods and techniques used to control the Merkabah with the runes may vary depending on the individual and their specific beliefs, practices, and experiences. It is important to approach this process with an open mind and a willingness to experiment and explore, in order to discover what works best for you.