Hello,
The first thing a person wants to do before undertaking any spiritual work such as divination is grounding and centering. If you are familiar with your chakras, picture your root chakra opening up and roots coming out of you and going deep into Mother Earth. Visualize yourself as being kind of like a tree if that makes sense. Allow the earth energy to flow upwards through your chakras and out your crown chakra. This will allow the earth energy to keep you grounded and centered and allow your crown chakra and third eye to open to receive information from the spiritual realms. Also, I ask angels and Spirit to surround me and protect me and give me clear sight.
Hope this helps some :)
Brightest Blessings,
Kali