Bhakti Yoga-Bhagavad Gita Chapter 12 [The Path of Devotion]
Krishna Said > Shaloka: 17
One who neither grasps pleasure or grief, who neither laments nor desires, and who renounces both auspicious and inauspicious things, is very dear to Me.
A pure devotee is neither happy nor distressed over material gain and loss, nor is he very much anxious to get a son or disciple, nor is he distressed by not getting them. If he loses anything which is very dear to him, he does not lament. Similarly, if he does not get what he desires, he is not distressed. He is transcendental in the face of all kinds of auspicious, inauspicious and sinful activities. He is prepared to accept all kinds of risks for the satisfaction of the Supreme Lord. Nothing is an impediment in the discharge of his devotional service. Such a devotee is very dear to Krishna.