Shravana ('listening') is the inquiry into the real significance of the vākya and inquiring into the about the significance of shravana in in solitude is known as:

The inquiry into the real significance of the vākya (sentence or statement from the scriptures) is known as Shravana in Hindu philosophy. This is a process of listening or hearing that involves deep contemplation on the teachings of the Upanishads or other sacred texts.

When this process of Shravana is performed in solitude, it is known as Manana. Manana is the stage of reflection upon the teachings. It involves thinking deeply about the spiritual truths one has heard, turning them over in the mind, and viewing them from all angles. It is a process of intellectual assimilation of the spiritual knowledge, which leads to a firm understanding of the teachings.