It is said by Sants and Shastras that Nama Japa is extremely beneficial in Kali Yuga as it requires no rules.
But I have also heard that we should stick to one Holy Name. Is it true or can we do Nama Japa of more than one deity at the same time?
Also, are names of God and God with Shakti same? Like Sita Rama and Rama,or Krishna or Radha Krishna same? Should we count them as one japa ? Like alternatively chanting Rama and Sita Rama?