Śrīla Prabhupāda said:
You haven’t got to change your situation. If you are a student, remain a student. If you are a businessman, remain a businessman. Woman, man, black, white–anyone can chant Hare Krsna. It is a simple process, and there is no charge. We are not saying, “Give me so many dollars, and I shall give you this Hare Krsna mantra.” No, we are distributing it publicly. You simply have to catch it up and try it. You’ll very quickly come to the transcendental platform. When you hear the chanting, that is transcendental meditation.
The Journey of Self-Discovery-His Divine Grace A.C. Bhaktivedanta Swami Prabhupāda