“When, by accustoming yourself in this way, you never generate, for even an instant,
A mind that aspires for the splendors of recurring samsara,
And you develop the attitude that day and night always is interested keenly in liberation,
At that time, you have generated renunciation.”
From The Three Principal Aspects of the Path by Jey Tsongkhhapa. Translated by Alex Berzin. PDF available from The Berzin Archives.