Shaykh Abdul Qudoos Gangohi (Allah have mercy on him) advised,

‘It must be understood very clearly  that the objective of acquiring knowledge is to act accordingly.

On the Day of Judgement  the inquiry will be about  the actions performed not regarding the extent of one’s knowledge.

The aim of these actions is to acquire sincerity and love of Allah.’

Maktubat e Qudoosi, via Tareekh Mashaikh e Chisht, volume 1, page 259