All this so-called esoteric knowledge about chakras, energy fields, kundalini, astral bodies, is dangerous as knowledge. As experience it is a totally different thing. Don’t acquire it as knowledge. If it is needed for your spiritual growth, it will come to you in its right time, and then it will be an experience. And if you have an acquired knowledge, borrowed knowledge, it is going to be a hindrance.
For example, Hindu yoga believes in seven chakras, Jaina scriptures mention nine chakras. And Buddhist scriptures say that there are dozens of chakras, that these are only the important ones which have been chosen by different schools. They don’t give any fixed number. Acquired knowledge will be confusing: how many chakras? And what are you going to do with that knowledge, whether there are seven or nine or dozens? Your knowledge is not going to help; it can only hinder.