@himanshuchauhan: Vajrayana Buddhism has many deities apart from Lord Buddha. These deities are known as Yab-Yum or Union Deities or they are also known as tantric deities or YIDAMS. Some of them include Heruka, Chakrasamvara, Kalachakra, Vajrayogini, Khyung. In monastries or in the great himalyan caves of Nepal, Tibet and Sikkim, the old tantric buddhist masters will transfer esoteric knowledge to the young seers about the yidams. These yidams in turn help them to gain sacred powers to command the Nagas, and other spirits and it will eventually lead you to enlightenment. One of the rituals is known as Chod (literally translates to ‘Laughter of Dakinis [female primordial energies]’ (https://www.youtube.com/watch?v=-Ir14pujt54).
Apart from this, you will have the potential to control your own rebirth. That is how Himalayan masters come to the worlds. They are also known as Tulku’s or Rinpoche’s. Before leaving this world, they tell the monks that they are going to die and would take birth in this particular direction after certain month/period. They will ask them to seek him/her in that direction. He will write a letter and will seal it and will ask the highest monk to open only after certain defined period. There he will write on how to seek his reincarnation.
Once the dead monks reincarnation is identified, they will conduct a series of tests with the new born child(when he starts to walk, talk, etc), such as, they will keep different sets of malas, clothes and the previous monks belongings. If the reincarnation is real, the child will choose all those things that belonged to the former monk.
If you want to seek further, please feel free to PM me, I will share some of the books that I have with me that gives insight about such practices… But please be warned that these books are extremely dangerous and you should have a master who is adept at this rituals. You also need to be initiated to practice these tantric practices.
Also, I may not be able to reply you immediately, since I’m pretty busy now a days because of my job, but I’ll definitely reply sooner or later