To me, sadhana is a daily spiritual practice allowing time and space for an individual to turn inward.
As Yogi Bhajan (of the Kundalini yoga tradition) says, "Sadhana is self-enrichment. It is not something which is done to please somebody or to gain something. Sadhana is a personal process in which you bring out your best."
Sadhana could be taking a walk in nature, doing breath work or yoga asanas on a mat, spending time meditating or chanting, reading and reflecting on a poem, or simply watching the sun rise.
Please accept this post as a possible starting point for your own practice today.
Rest as Readiness
Excerpted from ‘REST’ from PILGRIM: Poems by David Whyte ©2012 David Whyte revised Jan: 2015
It was rest then, felt as sheer readiness, and the place you went to find it, impossible to say, some artful way the body looks for just repose after days of walking, …
your body dedicated to anticipation, and to going on, as if the way ahead had been made only for your feet, and the breeze as a hand on your back all along, the path inside you a parallel that was not a parallel, some internal invisible way you had to follow; and always with you, a listening in: an echo in the dark to take along the lighted road.