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.
Salvakalpa samadhi is ...
Quotes from the same author
Don't judge others. Always be open to them. Avoid the cult mentality, you know, the super-slick, "I'm superior because I meditate, because I'm on the pathway to enlightenment," the subtle ego nonsense, terrible trap.
It is necessary to have a very liberal and simultaneously very conservative mentality to practice Tantric Zen.
If you learn to lead your life strategically and strongly, you can overcome the opposition. But running away, you never overcome anything. The pathway to enlightenment is for the warrior, the samurai.
A good warrior, a seventh or eighth degree black-belt, will tell you there is no victory. It doesn't make you more powerful to win. It's just what you do. It's an expression of your personal power level.
You might have a warrior spirit in there somewhere, and it's just waiting for the opportunity to come out. If you do, you might be a candidate for the pathway to enlightenment.