The point is that one must take up a particular path and stick to it, obeying all the rules and regulations necessary for success in spiritual life. It was Lord Caitanya's mission that He teach the path of Kṛṣṇa consciousness to all men and thereby enable them to partake of the immortality of spiritual life.
From Caitanya-caritāmṛta we learn how Caitanya taught people to become immortal, and thus the title may be properly translated as "the immortal character of the living force." The supreme living force is the Supreme Personality of Godhead. He is also the supreme entity. There are innumerable living entities, and all of them are individual. This is very easy to understand: We are all individual in thought and desires, and the Supreme Lord is also an individual person. He is different, though, in that He is the leader, the one whom no one can excel. Amongst the created living entities, one being can excel another in one capacity or another. The Lord is an individual, just as the living entities are individual, but He is different in that He is the supreme individual.