You can ask Satan about meditations you are doing, and talk to Him about certain meditations you are interested in and you will get answers.
You can try the meditation for yourself and see if it works out and that you are ready for it.
You can talk to your Guardian.
What I personally had happen with me was Satan, my Guardians and my Demoness lover directed me to certain meditations when they knew I was ready for them and I have been doing them since.
Do whichever you feel the most comfortable with.
Hail Satan.
Hail Lady Agares.
Hail Lady Beleth.