Astral travel can be enhanced by working with crystals and their vibrational field levels during your session. But where do you start and how to help? There are many different suggestions for this, as well as different ones will resonate within different people and their energy fields.
A good place to start is by working with the crystals you enjoy the most. If you are not sure where to start, go with your intuition and follow your gut instincts as they will not steer you wrong.
A wonderful way to work with them in astral travel and meditation sessions are in geode form. The best ones I have come across that have the highest energy vibrational level are clear quartz, amethyst, citrine and calcite. It is best to work with just one type of crystal within the geode, but you can combine them in your circles if you wish. The energy field will be a combination of the different types and will have them make a weaving type of pattern within the energy field. This is a very unique type of field to work within, but may not always be the best, as opposed to a single type of stronger vibrational field you would receive with just one type of geode.
During your astral travel session, surround yourself with as many geodes as possible, in a circle, or alternating the type of crystal found within. The more the better, and even if they are small, the geodes still put out a lot of vibrational fields for you to work within!