Greed for enlightenment and immortality is no different than greed for material wealth. It is self-centered and dualistic, and thus an obstacle to true attainment. Therefore these states are never achieved by those who covet them; rather, they are the reward of the virtuous.
LaoziThere is no calamity greater than lavish desires. There is no greater guilt than discontent. And there is no greater disaster than greed.
Laozi