Zen is Tantric Buddhism, Vajrayana is tantric Buddhism - these are various forms of it. Tantric Buddhism simply means cutting to the chase.
Frederick LenzAll action is generated by desire. It is the desire to live that causes us to reincarnate.
Frederick LenzWhen thought stops, a doorway opens into dimensions that are pure and unassociated. They're nonbinding realities. They're non-samskaric, which simply means that they're beautiful; they're ecstatic.
Frederick Lenz