Excerpts from a discourse by our Sri Sri Muralidhara Swamiji
Namakirtan is Mediation - 5
Sometimes when we find that our mind does not come under control we can do japa of Rama Nãma once, then think on the form of Rama once. Then again do japa of the Nãma followed by the thought of the form of Rama. Japa of the Nãma and thinking of the form of God can be done alternately in this manner. This is also dhyana - Nãma and the God of the Nãma. Thinking of the 'murti' (form) of the Mantra that we do japa of can also be resorted to.