A devotee should always aspire to live in the association of advanced devotees and engage in the service of the Lord through the parampara system.
As a kshatriya has no problems while taking the wounds on his chest. similarly a devotee has no problems taking wounds while serving Krishna.
Determination means to serve Krishna inspite of bodily inconveniences.
To serve Krishna means life and to engage in sense gratification means death.
We should always remember that our body is not for sense gratification, it is for Krishna’s service only. To render very good service to Krishna we should not neglect the upkeep of the body.
A musician, because one has got a good attachment for music, he tries to perform it very perfectly. So love is the basis. Similarly, when you serve Krishna, if you have no love for Krishna, you cannot serve Him very nicely. Krishna also does not accept your service if it is not done in great love and affection.