Preparatory devotion is called sadhana bhakti (Devanagari: साधना भक्ति ISO15919: sādhanā bhakti). This is the beginning stage of bhakti.
Mind, the doer of all actions, is attracted to sansar since eternity. So, mind pursues worldly possessions for finding eternal bliss. Sansar is insipid whereas God is bliss.
That