Heaven on earth" is a metaphorical phrase describing a place or situation that is exceptionally pleasant and enjoyable, often evoking feelings of happiness and contentment. It's not a literal location but rather a subjective experience. 

Here's a more detailed breakdown:

Meaning:

The phrase "heaven on earth" is used to express that a particular place or situation is exceptionally beautiful, peaceful, or fulfilling. 

Examples:

You might say, "That vacation was heaven on earth" or "Spending time with my family is my heaven on earth". 

Kashmir and the phrase:

The phrase is often associated with Kashmir, a region in India, where the landscape and culture are seen as exceptionally beautiful. 

Other uses:

The phrase can also be used in a more general sense to describe any place or experience that evokes a feeling of paradise or bliss. 

Religious context:

In some religious contexts, "heaven on earth" can refer to the idea of an ideal or idyllic world to come.