This is a quote of Rawat's from 1976:

"The ashram is for people who have dedicated their lives for their lifetime. When you understand that the purpose of your life is to understand knowledge and to devote your life to Maharaji, then ashram makes sense and is really required.

Ashram is intensive care provided by Guru Maharaj Ji. Guru Maharaj Ji knows how to operate on us and he is the surgeon. See, you have a disease, and you have been given medicine for the disease, and that's good, which is knowledge. But we need intensive care to recover from the disease because we can fall back into the disease. And the ashram is Guru Maharaj Ji's hospital. Ashram is the place we all need to come from but some people can't be there because they are married."

You can see that the metaphor had nothing to do with drugs.  Agreed?