lakṣmisampanna: possessed of auspiciousness, lakṣmaṇa: Lakshmana, śarīrata: api even by offering his body, sarvapriyakara: doing every thing dear to him, tasya rāmasya for that Rama, apara: another, bahi: prāṇa iva like life moving outside (his body).
Lakshmana, possessed of fortune, was the dearest to his brother than his own body. As though he was his life without.