In the very elevated stages one begins to genuinely feel one's own inadequacy in serving or reciprocating with the Lord. The external manifestations of humility should be an honest reflection of the inner realization, not an artificial attempt to gain recognition. True humility manifests itself as a desire to serve, with body, mind and speech. However devotees who project humility by constantly calling themselves as the most-fallen or the most offensive without desiring to render service are generally far from this realization. They either do it expecting reciprocation or simply to show case their great humility.
All religions stress on surrender as the key component to making spiritual progress.
Surrender is not simply a theoretical concept, nor is it achieved through elaborate rituals or loud proclamations. Surrender is very real and very practical. It means to surrender to the instructions of the Lord and His representatives. One cannot claim to be surrendered and then act whimsically, the two actions are in complete contradiction. This is real honest surrender, which will draw the mercy of the Lord.