The means of subsiding in the Heart

The intellect, which is the suttarivu, the individual consciousness, loses it focus and suffers by constantly directing attention towards objects and their attributes. The way to make it [individual consciousness] unite with and subside in one's swarupa [true nature] is to begin taking it, whole heartedly, as the object of attention through the enquiry, 'Who is the "I" who is paying attention to sordid sense objects?'

~ verse 185

Listen [to me as I tell you] the way to merge with the swarupa that remains as the core, as [pure] consciousness within the [objectifying] consciousness, supporting it. To train the consciousness that perceives objects to pay attention to itself is the way for it to turn Selfwards and remain sunk in the Heart.

~ verse 899, Guru Vachaka Kovai by Muruganar, Translated by Dr T. V. Venakatasubramanian, Robert Butler and David Godman