Tirukkural 486: Knwoing the Fitting Time

The self-restraint of the energetic (while waiting for a suitable opportunity), is like the drawing back of a fighting-ram in order to butt.

Image of Satguru Sivaya Subramuniyaswami
Here are the ingredients: attention, concentration, meditation, contemplation, samadhi. Willpower is the fuel.
—Gurudeva