Sri-bhagavan uvaca
aruruksor muner yogam
karma karanam ucyate
yogarudhasya tasyaiva
samah karanam ucyate
karma karanam ucyate
yogarudhasya tasyaiva
samah karanam ucyate
Meaning: For one who is a neophyte in the eightfold yoga system, work is said to be the means; and for one who is already elevated in yoga, cessation of all material activities is said to be the means.
Bhagavad Gita: Work is said to be the means (Dhyana-yoga (Text 03, Ch 6)