When a devotee takes that position of desiring the opportunity to serve the Lord, the Lord maintains him by giving him service. Everything else he needs is automatically there, because the Lord is very eager to take care of His devotee. Mixed devotees, however, do not realize that. They think that they have to take care of all their material needs first before they can do some service, but the Lord is very much inclined to those devotees who are fully dependent upon Him. The Lord had told Srivasa Pandit, “Even if the Goddess of Fortune becomes impoverished, I will personally carry on My head everything that you need directly to your doorstep. You will never be in need."
LFD Vol 3, Full Surrender, Pg 80, 1st paragraph