What are Modals in Salesforce Lightning Component?

Hi Prachi,

Modals are used to display content in a layer above the app. This paradigm is used in cases such as the creation or editing of a record, as well as various types of messaging and wizards. Modals can have a tagline in the header, simply by adding a paragraph after the heading. Modals always have an equal amount of space at the top and bottom to account for the height of the close button.

Hi,

To make it more simple -

Modals in Lightning Components are Kind of pop ups, It is a basically used to display the records above the above on the layer in edit or save mode.

Hope this helps.