Pure devotee starts from a madhyama. Madhyama is a pure devotee. We will say 'pure devotee' and then put it way off in the distance. No, pure devotional service can be performed from niṣṭhā.
CHAPTER 19 started 18th Apr 2016 Lecture 3 at 22 min 10s http://seminary.bhaktivedantaacademy.com/content/uploads/2016/05/20160418_SB205_3.49-3.55_Hanuman.mp3 Universe is laid out as it is for various stage of development of Krishna consciousness. Earthly plane is mainly meant for Krishna consciousness.
http://seminary.bhaktivedantaacademy.com/content/uploads/sc/year2/noi102/2011-11-21-NOI-17-20.mp3 This course is part of Sastra-Caksus, Year 2 and consists of 25 lectures, available on: http://seminary.bhaktivedantaacademy.com/classes/noi-thematic/ Given in Bhaktivedanta Academy, Sridham Mayapur November-December 2011 The following are lecture notes briefly delineating its contents LAULYAM - Restlessness, greed and desire Bg 2.55-56 Lord Krishna explains that when one gives up
http://seminary.bhaktivedantaacademy.com/content/uploads/sc/year1/bg101/2010-12-23-BVPS-BG-8.14-8.17-How-to-reach-pure-devotion.mp3 This course is part of Sastra-Caksus, Year 1 and consists of 91 lectures, available on: http://seminary.bhaktivedantaacademy.com/classes/bhagavad-gita-seriatim/ Given in Bhaktivedanta Academy, Sridham Mayapur, September 2010-April 2011 The following are lecture notes briefly delineating its contents. Karma, jnana and yoga are dependent on favorable situations, but pure devotional service is not