saṅgābhāvo harer dhīrair ayoga iti kathyate ayoge tvan-manaskatvaṁ tad-guṇādy-anusandhayaḥ tat-prāpty-upāya-cintādyāḥ sarveṣāṁ kathitāḥ kriyāḥ

Learned scholars in the science of bhakti-yoga say that when there is an absence of association with the Supreme Personality of Godhead, separation takes place. In the stage of ayoga (separation), the mind is filled with Krsna consciousness and is fully absorbed in thoughts of Krsna. In that stage, the devotee searches out the transcendental qualities of the Supreme Personality of Godhead. It is said that in that stage of separation, all the devotees in the different mellows are always active in thinking of ways to attain Krsna's association.