What is the nature of a person who is a 'Bodhichitta' in thinking, conduct and what is his desire?

Acharya Shantideva in Bodhichanjavatar says - "For those who are ailing and are diseased, I desire to be like the medicine and the doctor (Vaid) myself. Until he does not recuperate, I desire to serve him selflessly. I desire to quench everyone's thirst and satisfy everyone's hunger by distributing water and food when there is a famine. May all come in my refuge and accept food and water. May I become a limitless treasure for all in misery and penury. I shall be ready to offer all services when desired".

May I become the guardian of all the orphans, become a guide for all the travellers, become a bridge for the same. May I become a lamp for the ones desirous of light, become a bed for the ones desirous of sleep, and become a slave for the ones desirous of becoming a master.