The author points to God, Nirvana, Pure Land ... present. Such words point to an indescribable, unnamable. Nirvana is, Thay writes, obscured by two aspects: afflictions, wrong perceptions - this latter the root of suffering.
One of my favorite reads from Thay. I especially appreciate how he integrated theistic religion and Buddhism - nontheism -, each pointing to something outside dualistic thinking - dualistic thinking being ignorance, or wrong view. He reminds me that atheism (God is not) and theism (God is) are both expressions of attachment to wrong view... - both pointing fingers at each other, but playing the same game. "It is very strange to say, God is or God is not." Rather, the "extinguishing of all notions" is entailed in nirvana, he says.