Student or Learner
We must let more people enjoy the same benefits (as) we do. This is the mission of the Buddha’s disciples, and this is the pledge set up by all the believers of Buddhism before they start / started their practice.
1. Is 'as' needed? I think so.
2. Is 'do' needed? I believe 'do' is optional?
3. I am inclined to use 'started', but I think 'start' is correct.
4. Can the sentences be better phrased?