HI,
in sastra there is a one mantra.i.e
sivasya hrudayam vishnuhu,vishnusya hrudayam sivaha :
sivarupaya vishnave vishnurupaya sivaha :
so, vishnu and siva both are same ,there is no difference between them
HAI DEV
yakshini sadhna.THERE ARE SO MANY NUMBER OF YAKSHINIS IN MANTRA SASTRA ;TELL ME THE NAME OF YAKSHINI'.YES its not possible without guru.SEND THE NAME I AM GIVEN THE ADDRESS OF THE GURU