'Lord Shiva' is the favored of Ram and 'Ram' is the favored of Shiva. Such a coincidence is not found in history that there should be mutual favor between the worshiper and the worshiper, this situation is given by the saints as 'mutual devo bhava'. Shravan Lord Shiva is very pleased by offering water to Shiva by reciting Shiva's favorite mantra 'Om Namah Shivaya' and 'Shri Ram Jai Ram Jai Jai Ram' in the month of. Lord Rama himself said
'Shiv drohi mama das kahava so nara mohi sapnehu nahi paava.'
That is, one who wants to get me by hating Shiva, he cannot achieve me even in a dream. That is why in the month of Shravan, along with worshiping Shiva, the recitation of Shri Ramcharitmanas is of great importance.
Maryada Purushottam Shri Ram came to the banks of Narmada on a secret stay to meet Rishi Jabali during the exile of 14 years. At that time it was surrounded by mountains. On the way, Lord Shankar was also eager to meet him, but he was not coming between the Lord and the devotee. Lord Rama's feet should not be pricked by pebbles, that is why Shankarji made small pebbles in a circular shape. That is why Shankar is called in Kankar-Kankar.
When Lord Shri Ram reached the banks of Rewa, Narmada water was flowing from the cave. Shri Ram stayed here and collected sand and started anointing that sand with Narmada water for a month. On the last day, Shankarji himself sat there and Lord Ram-Shankar met.