Contract Employee and Permanent employee

In the real world contract jobs people are sometimes paid more than permanent employees but they don't get benefits for health & insurance etc.

Hard work may be more by contract employee but he is not entitled to year end bonus.

But benefits are paid to a permanent employee for insurance & bonus etc even if he works at minimal performance etc...regularity, commitment continuity...etc

Now lets try & relate this to spiritual practice.

Compare people who engage in spiritual practice with temporary interest and those with long term interest. The one with short term vision behaves like a tourist visiting a city and looks around charts up with a lot of enthusiasm about the city, and later forgets. A resident becomes a part of the city & gradually learns & retains what he learns.