Thank you very much Dechen for the reply.
I'm very much aware of the side effect of these practice. That's why I'm asking if there's a teacher or any of you would like to teach and guide me is much welcome.
As for delusions, In my meditation, yoga and many practices that I already did, the delusions is always come and appear with or without direct guidance. The problem is whether we can control and manage them. Not to mention any un-explained stimulation or feeling appear in the meditation.
Your reply is utmost welcome and I thank you very much indeed for your information and warning.
Thank you Dechen