How activities in Krishna consciousness can lead one ultimately to the spiritual goal is described here. There are various activities in Krishna consciousness, and all of them will be described in the following verses. But, for the present, just the principle of Krishna consciousness is described. A conditioned soul, entangled in material contamination, is sure to act in the material atmosphere, and yet he has to get out of such an environment. The process by which the conditioned soul can get out of the material atmosphere is Krishna consciousness. For example, a patient who is suffering from a disorder of the bowels due to overindulgence in milk products is cured by another milk product, namely curds. The materially absorbed conditioned soul can be cured by Krishna consciousness as set forth here in the Gita. This process is generally known as yajna, or activities (sacrifices) simply meant for the satisfaction of Vishnu, or Krishna.
Every endeavor requires land, capital, organization and labor. Just as in business one requires a place to stay, some capital to use, some labor and some organization to expand, so the same is required in the service of Krishna. The only difference is that in materialism one works for sense gratification. The same work, however, can be performed for the satisfaction of Krishna, and that is spiritual activity. If one has sufficient money, he can help in building an office or temple for propagating Krishna consciousness. Or he can help with publications. There are various fields of activity, and one should be interested in such activities. If one cannot sacrifice the results of his activities, the same person can still sacrifice some percentage to propagate Krishna consciousness. This voluntary service to the cause of Krishna consciousness will help one to rise to a higher state of love for God, whereupon one becomes perfect.