This is the one central idea in the Gita: work incessantly, but be not attached to it. Samskâra can be translated very nearly by "inherent tendency". Using the simile of a lake for the mind, every ripple, every wave that rises in the mind, when it subsides, does not die out entirely, but leaves a mark and a future possibility of that wave coming out again. Thi...s mark, with the possibility of the wave reappearing, is what is called Samskâra. Every work that we do, every movement of the body, every thought that we think, leaves such an impression on the mind-stuff, and even when such impressions are not obvious on the surface, they are sufficiently strong to work beneath the surface, subconsciously. What we are every moment is determined by the sum total of these impressions on the mind. What I am just at this moment is the effect of the sum total of all the impressions of my past life. This is really what is meant by character; each man's character is determined by the sum total of these impressions.
- Swami Vivekananda
The Complete Works of Swami Vivekananda/Volume 1/Karma-Yoga/The Secret of Work