Salvakalpa samadhi is absorption in eternity to the point where there is no real concept of self but there's still a karmic chain. Nirvikalpa samadhi is absorption in nirvana; concepts of self and no-self go away completely.
Frederick LenzYour experiences in the causal dimensions will give you knowledge of time, space, dimensionality and what lies beyond all these things.
Frederick LenzKnowledge of the Enlightenment Cycle, of the ways that inner dimensions and nirvana work, lifts you far above the transient sorrows, pains, pleasures and joys that the unenlightened masses experience.
Frederick LenzMy feeling is that drugs and alcohol take away from the pure experience of meditation. That does not mean that occasionally, a person couldn't have a glass of wine or a drink.
Frederick Lenz