I think its the same with any service based business. When you're away for an extended period of time, your customers find other providers for your services. Even if you're 100 times better than the next service, if you're not available when your customer needs you, you lose them. Some go to other providers, others learn to do without or do it themselves. The last part probably doesn't apply that much to psychics but you get the idea. She's been away a lot so it's going to take a while for her to build her business back up again.