Maharishi

Shaum (Sa and Ha and Oum) makes you realize a certain aspect of Brahman, not the entire Brahman. It is a good, but not complete mantra.

No, there is no danger in practicing simple Vashikaran mantras.

Aum Hrim Mohini Svaha just have the effect of of more loving attitude of the female sex towards you, nothing more. The other mantra has calls upon spirits (bhuta).

Just buy the books of L.R. Chawdhri, but I warn you ! I have tried these mantras and they can destroy you or your familiy if you are not protected. So please do not use these mantras, they are very harmful for yourself and the effect stays for many years. You will pay a price if you use them.

Vashikaran means : ""keeping under control" With Vashikaran you bring the circumstances in relation tot a certain person under your control, but you do not directly affect their mind.

Mohan means : "blinding/making fond of/". With mohan you influence the mind and feelings of the other.